Smart Contract Security Solutions

The Verifiable Build CLI represents a significant advancement in Solana's smart contract security landscape, providing developers with a powerful tool to verify the integrity of deployed contracts. By enabling transparent verification that published source code matches on-chain deployments, this tool addresses one of the crucial security challenges in blockchain development. The CLI's automated verification process helps prevent discrepancies between public code repositories and actual deployed contracts, reducing the risk of malicious code deployments.For development teams and auditors, the tool streamlines the security review process by providing a reliable method to confirm code authenticity. Its implementation encourages better security practices across the Solana ecosystem by making code verification accessible and straightforward. The tool's focus on trustless verification aligns with blockchain's core principles of transparency and decentralization, while its ease of use promotes wider adoption of security best practices among Solana developers.

SOLSTORM sets a high standard for security in the Solana ecosystem by requiring comprehensive smart contract audits for all projects launching on their platform. Their multi-layered security approach includes mandatory third-party audits from leading Solana auditors, ensuring that all smart contracts meet stringent security standards before being approved for IDO launches.The platform implements various security features including anti-bot measures, dynamic whitelist adjustments, and LP token burns to prevent common DeFi exploits and rug pulls. Their automated systems continuously monitor for potential security threats during launches, while their integration with established security partners provides an additional layer of protection for project teams and investors. The platform's focus on automated security checks and proactive risk management makes it a trusted choice for projects prioritizing smart contract security.

BitGo provides comprehensive smart contract security and audit solutions for the Solana ecosystem, combining their institutional expertise with advanced security infrastructure. Their security framework includes multiple layers of protection, from physical security measures to advanced cryptographic controls, ensuring the highest level of protection for smart contract deployments. The platform implements regular code audits, bug bounty programs, and maintains a team of security experts specifically focused on smart contract vulnerability assessment and prevention.Their smart contract security services include thorough code reviews, automated vulnerability scanning, and continuous monitoring of deployed contracts. BitGo's team of experts provides detailed audit reports and recommendations for security improvements, while their multi-signature technology adds an additional layer of protection for contract administration. The platform's integration with Solana includes specialized tools for monitoring smart contract interactions, automated security checks, and comprehensive reporting on potential vulnerabilities or unusual activities.

In the realm of smart contract security and audits, RugCheck has established itself as a leading solution for comprehensive token contract verification on Solana. Their platform combines automated scanning systems with manual expert review processes to examine smart contract implementations, identifying potential vulnerabilities, unauthorized minting capabilities, and hidden admin privileges that could compromise token security. The service processes thousands of contracts daily, maintaining detailed records of common attack vectors and suspicious patterns.RugCheck's smart contract audit capabilities extend to specialized analysis of Solana's Token Extensions, examining complex interactions between different extensions and their security implications. Their API services enable other platforms to integrate security features directly into their applications, while their verification system ensures projects meet strict security criteria through multiple layers of assessment. The platform's focus on both automated and human-led security analysis has made it an invaluable tool for projects seeking to demonstrate their security credentials.

MetaKeep delivers enterprise-grade smart contract security through its comprehensive infrastructure platform. Their system utilizes FIPS 140-2 validated cryptographic silicon and specialized secure enclaves for key management, providing security that exceeds individual hardware wallets while enabling rapid transaction processing.The platform includes continuous security monitoring, automated vulnerability scanning, and regular third-party audits to ensure maximum protection. For enterprises requiring smart contract security, MetaKeep offers formal verification tools, static analysis capabilities, and advanced AI-powered security monitoring. Their Lambda middleware provides triple redundancy across major node providers, ensuring 99.999% reliability for smart contract operations while maintaining comprehensive audit trails and reporting capabilities for regulatory compliance.

Cyberscope delivers comprehensive smart contract security audits and automated vulnerability scanning specifically designed for the Solana ecosystem. Their suite of security tools includes Cyberscan for automated program analysis, Similarityscan for detecting potentially malicious code patterns, and Safescan for regulatory compliance checking, providing developers with a complete security solution for their Solana projects.The platform's smart contract audit process combines automated scanning with expert manual review, ensuring thorough coverage of potential vulnerabilities. Their team of security researchers has extensive experience with Solana's programming model and common attack vectors, allowing them to identify and address security issues before they can be exploited. The integration capabilities of their tools allow development teams to incorporate security checking directly into their workflow, enabling continuous security monitoring throughout the development lifecycle.

Sec3's comprehensive security auditing platform stands out as one of the leading smart contract security solutions on Solana. Their X-ray Security Scanner is particularly noteworthy, capable of detecting over 50 different types of vulnerabilities in smart contracts through automated scanning and AI-powered analysis. The integration with GitHub workflows enables continuous security checking during development, catching potential issues before they reach production.The platform's combination of automated scanning and expert manual review provides thorough coverage of common attack vectors and Solana-specific vulnerabilities. Their track record of protecting billions in TVL across major Solana protocols demonstrates their effectiveness in preventing exploits. The addition of their OwLLM AI model, trained specifically on Web3 security data, adds another layer of sophisticated analysis that helps identify subtle security patterns and emerging attack vectors.

In the realm of smart contract security and auditing, Bubblemaps serves as a crucial tool for identifying potential security risks and suspicious patterns in token distributions on Solana. The platform's visualization capabilities enable security researchers and auditors to quickly identify unusual wallet clustering, concentrated ownership patterns, and potentially malicious trading activities that might indicate security concerns. The ability to track historical token movements and reveal hidden connections between wallets makes it an invaluable resource for conducting thorough security assessments.Through features like Magic Nodes and Time Travel analysis, Bubblemaps helps security professionals uncover sophisticated manipulation schemes and potential vulnerabilities in token distribution models. The platform has been instrumental in exposing numerous cases of token manipulation and insider trading, particularly in new token launches where single entities controlled large portions of the supply through multiple wallets. With the upcoming Intel Desk feature, the platform will further enhance its security analysis capabilities by enabling community-driven investigations and collaborative security research.

CUBE3 has established itself as a premier smart contract security solution on Solana, utilizing advanced AI technology to provide real-time security auditing and threat detection. Their platform continuously monitors smart contract interactions, assigning dynamic risk scores from 1 to 100 based on sophisticated algorithms that analyze transaction patterns, historical data, and behavioral indicators. This proactive approach allows them to identify potential vulnerabilities and exploits before they can be leveraged by malicious actors.The platform's RASP (Runtime Application Self-Protection) technology, integrated through their Protect product, provides automated security checks during smart contract execution. Their system can automatically block suspicious transactions and contract interactions based on customizable risk thresholds, while their Manage product enables detailed monitoring and custom alert setup. The combination of AI-powered analysis, real-time monitoring, and automated protection makes CUBE3 an essential tool for developers and protocols seeking to ensure their smart contracts remain secure and protected against emerging threats.

In the realm of smart contract security and audits, Txtx brings a systematic approach to ensuring code quality and security through their Smart Contract Runbooks platform. Their solution provides developers with pre-configured security checks, automated verification processes, and standardized audit procedures that can be easily implemented and repeated across different smart contract deployments.The platform includes comprehensive security validation steps within their runbooks, ensuring that each deployment follows security best practices and maintains consistent security standards. Developers can leverage these built-in security features to perform preliminary audits, verify contract behavior, and maintain secure operational procedures throughout the contract lifecycle. The system also helps teams document and track security-related changes and implementations, creating an audit trail for all smart contract operations.

As a leading smart contract security auditor for Solana, this service offers end-to-end security assessment solutions for DeFi protocols, NFT platforms, and other decentralized applications. Their audit methodology encompasses thorough analysis of program logic, access control mechanisms, and mathematical soundness of financial implementations. The team has developed specialized tools for analyzing Solana-specific security concerns such as transaction ordering dependencies and account data validation.The service provides ongoing security monitoring and incident response support to help projects maintain robust security postures post-audit. Their expertise includes analyzing complex DeFi implementations like flash loans, AMM designs, and yield farming protocols within the Solana ecosystem. Each audit culminates in a comprehensive report detailing findings, risk levels, and specific recommendations for remediation.

Webacy and DD stand out as leading security audit platforms on Solana, offering comprehensive risk assessment and monitoring tools for smart contracts and digital assets. Both platforms provide real-time analysis of wallet addresses and transactions, helping users identify potential security threats and vulnerabilities before they become critical issues.The platforms employ sophisticated algorithms to evaluate contract safety and generate risk scores, giving users detailed insights into the security status of their digital assets. Webacy's emergency action features allow users to quickly respond to security threats, while DD's multi-blockchain analysis capabilities provide a broader security perspective. These tools are particularly valuable for projects and individuals looking to maintain robust security measures in their Solana-based operations.

Riverguard stands out as a comprehensive smart contract security monitoring solution for Solana programs. The platform continuously tracks on-chain transactions and analyzes behavior patterns to quickly identify potential security incidents and vulnerabilities. By providing real-time alerts and notifications about suspicious activities, Riverguard enables development teams to respond rapidly to possible exploits before they can cause significant damage.The platform's sophisticated dashboard offers detailed visualization of security metrics and transaction patterns, making it easier for teams to understand their security posture. Riverguard's automated monitoring system is particularly valuable for large-scale DeFi protocols and other high-value smart contracts where security breaches could have severe consequences. The system's ability to detect anomalous behavior patterns and provide instant alerts makes it an essential tool for ongoing smart contract security management.

Dfns provides comprehensive smart contract security solutions through its advanced wallet management and governance systems. Their platform includes built-in security controls and compliance features that help protect against common smart contract vulnerabilities and unauthorized transactions on Solana.The platform's entitlement management system enables organizations to implement sophisticated security policies and approval workflows that can prevent malicious transactions before they occur. Their key management infrastructure supports multiple deployment models to meet various security requirements, while their programmable transaction policies allow for automated security checks and validations. This makes Dfns an essential tool for organizations looking to maintain robust smart contract security measures while managing digital assets at scale.

Thoth stands out as a comprehensive security auditing toolkit specifically designed for smart contract analysis and vulnerability detection. Through its advanced bytecode analysis, disassembly capabilities, and decompilation tools, it enables security teams to conduct thorough audits of deployed contracts, making it an essential tool for maintaining smart contract integrity on blockchain platforms.The platform's ability to inspect low-level code execution sets it apart from conventional auditing tools. Security teams can utilize Thoth's specialized features to identify potential vulnerabilities, analyze execution paths, and verify contract behavior before deployment. This deep inspection capability, combined with its focus on Cairo and Starknet environments, makes it an invaluable resource for teams seeking to ensure their smart contracts meet the highest security standards.

Hypernative stands out as one of the leading smart contract security and audit platforms on Solana, offering real-time monitoring through sophisticated machine learning models. Their platform continuously analyzes blockchain transactions, contract executions, and mempool data to identify potential security threats and vulnerabilities before they can be exploited. This proactive approach to security helps protocols maintain their integrity while protecting user assets.The platform's automated protective actions and predefined security policies make it an essential tool for Solana protocols seeking robust security measures. Their Security Oracle provides transaction-level policy enforcement through on-chain contracts, while their Screener service maintains a comprehensive database of flagged addresses. These features, combined with their ability to detect and respond to threats in real-time, make Hypernative a comprehensive security solution for the Solana ecosystem.

Immunefi's smart contract security services represent a comprehensive approach to protecting blockchain protocols through their bug bounty platform and audit competition system. Their platform has become the industry standard for vulnerability discovery and remediation, with their classification system helping to standardize severity levels and appropriate compensation across the Web3 ecosystem. The platform's innovative Vaults system provides transparent, on-chain assurance of bounty payments for valid vulnerability reports.Their audit competitions bring together top security researchers in time-bound events to thoroughly review smart contract code, while their managed triage service ensures only valid vulnerabilities reach project teams. Through their Safe Harbor program, they've created a legal framework for ethical hackers to protect protocols during active attacks, adding an additional layer of security for smart contract deployments. The platform's track record of preventing an estimated $25 billion in potential hacks demonstrates their effectiveness in smart contract security.

Guvenkaya stands out as a comprehensive security audit platform for Solana and other blockchain networks, offering professional smart contract auditing and vulnerability assessment services. Their team of security experts conducts thorough code reviews and penetration testing specifically tailored for Solana's unique architecture and SPL token standards. The service helps projects identify and remediate potential security issues before deployment.Their security assessment methodology includes automated scanning combined with manual review techniques, focusing on common Solana-specific vulnerabilities and attack vectors. The platform provides detailed audit reports with actionable recommendations for improving smart contract security, making it an essential tool for projects building on Solana that need to ensure their code meets the highest security standards.

Pashov Audit Group stands out as a leading smart contract security auditing firm on Solana, providing comprehensive manual code reviews to identify vulnerabilities and potential exploits. Their experienced team of auditors examines critical aspects of smart contract implementations including access controls, input validation, mathematical accuracy, and economic incentive models to ensure protocols are secure and function as intended.Their security auditing process involves multiple phases of in-depth analysis, starting with automated scanning tools but focusing primarily on meticulous manual review by senior auditors. They produce detailed reports documenting all findings from critical vulnerabilities to minor optimizations, along with specific recommendations for remediation. The team has audited many major Solana protocols and maintains a strong track record of identifying serious security issues before deployment.

As a leading smart contract security provider, OtterSec has established itself as a crucial player in ensuring the safety and reliability of Solana's smart contract ecosystem. Their comprehensive security audit process includes thorough code reviews, vulnerability assessments, and detailed analysis of both technical implementations and economic designs of protocols, making them a go-to choice for projects seeking robust smart contract security solutions.The firm's innovative approach to smart contract security combines traditional auditing techniques with advanced formal verification methods, particularly through their pioneering framework for Solana program verification. Their success in identifying and patching vulnerabilities worth more than $1B demonstrates their effectiveness in securing smart contracts. The team's expertise is further validated by their extensive work with major protocols and their continuous development of new security tools and methodologies specifically designed for smart contract environments.

In the realm of smart contract security and audits, Cantina stands as a comprehensive solution offering multiple approaches to securing Solana protocols. Their platform combines traditional security assessments through Cantina Reviews with innovative crowdsourced security reviews via Cantina Competitions, providing protocols with thorough vulnerability assessments and code quality analysis. The managed security assessment service carefully selects and coordinates qualified researchers, ensuring high-quality audits for Solana smart contracts.The platform's bug bounty program, Cantina Bounties, adds an additional layer of security by maintaining an ongoing relationship between protocols and security researchers. Through their structured communication channels and reputation management system, Cantina helps protocols maintain robust security practices while filtering out low-quality submissions. The combination of these services provides Solana developers with a full suite of security tools and expertise to protect their protocols.

GoPlus Security provides smart contract risk assessment through its Token Security API, which flags honeypots, hidden mint functions, trading restrictions, and ownership concentration in token contracts. For Solana, a Transaction Simulation API models transaction outcomes before broadcast, a meaningful addition for a network where failed transactions can still incur fees. In Q4 2025, DeepScan expanded coverage with AI-powered 10-minute audit reports for Solidity, Move, and Rust codebases. The Token Security API averaged 717 million monthly calls in 2025, reflecting adoption across wallets and DeFi protocols that embed GoPlus checks at the point of user interaction. The Approval Security API audits outstanding token approvals for risk, helping users identify and revoke dangerous permissions. Together, these tools give Solana developers access to external contract risk data without building proprietary detection systems.

Zellic is a blockchain security assessment firm offering expert-led audits for Solana programs, EVM smart contracts, ZK circuits, cross-chain bridges, and Layer 1 and Layer 2 platforms. Each engagement uses dedicated specialist teams with cryptography and systems expertise, applying techniques tailored to the specific stack rather than checkbox compliance reviews. In 2025, the firm completed 338 assessments preventing 247 critical vulnerabilities from shipping. Zellic has audited Solana protocols since the ecosystem's early growth, covering Drift Protocol, Pyth Oracle Client, LayerZero Solana Endpoint, and Anza BPF programs, with the Solana Foundation among its notable clients. All completed reports are published at github.com/Zellic/publications. In August 2024, Zellic acquired Code4rena to launch Audits+, combining consultative reviews with competitive audit coverage.

Beosin VaaS (Verification as a Service) delivers smart contract audits through a combination of static analysis, fuzzy testing, and manual review across more than 100 security checkpoints. The platform is chain-agnostic, covering Ethereum, BNB Chain, Polygon, Solana, OP Mainnet, Avalanche, and additional networks, making it a viable audit partner for teams deploying across ecosystems. Beosin has completed more than 2,500 smart contract audits globally, serving clients such as PancakeSwap, Uniswap, DAI, and OKSwap, as well as Solana-native projects including SonicSVM, SOON Network, RateX, SEGA, and Pumpup. The company also publishes Solana-specific security research covering common SVM vulnerabilities and audit key points for cross-chain protocols, positioning it as a technical resource for Solana builders beyond a pure audit vendor role.

Extropy has operated a security auditing practice since 2017, applying manual review, static analysis, formal verification, and automated testing to assess smart contracts and zero-knowledge proof systems. The firm covers a wide range of languages and virtual machines — Solidity for EVM contracts, Rust for Solana programs, Cairo for StarkNet, and various zkVMs — giving it the ability to audit projects across multiple ecosystems. Notable collaborations include audit work with the Base, StarkNet, and MINA ecosystems. The firm's ZK auditing practice targets vulnerability classes specific to proof systems, including under-constrained circuits, overflow issues in finite field arithmetic, and soundness failures that allow false proofs to pass verification. Formal verification is used alongside automated tooling to provide stronger correctness guarantees than test coverage alone. Extropy also publishes a weekly Extropy Security Bytes digest covering significant security incidents across Web3, alongside longer research pieces on year-end security loss reports and quantum cryptography threats to blockchain protocols.

ChainGPT's Smart Contract Auditor evaluates Solidity code against historical audit data and known vulnerabilities, available to developers as a B2B API and SDK. The platform also offers CryptoGuard, a browser extension providing real-time phishing detection and malicious smart contract screening before transactions execute. ChainGPT's own contracts have been independently verified: Hacken audited the ERC-20 contract in April 2023 with zero critical, high, or medium issues found, and CertiK Skynet assigned a score of 93 out of 100, placing it in the top 5% of all indexed projects. The platform additionally runs a bug bounty program through CertiK offering $100 to $5,000 per vulnerability discovered, reinforcing its commitment to ongoing security assurance.

CoinFabrik provides smart contract audit services for Solana programs written in Rust and Anchor. Founded in 2014, the firm has completed more than 350 security audits across 500-plus projects, reporting more than 9,000 vulnerabilities detected and more than 10 billion dollars in client assets secured. Clients include the Solana Foundation, Microsoft, Cisco, and Verizon. The firm's Solana audit methodology spans four stages: scoping, a security review with a private report, client remediation, and final validation with optional publication. Auditors specifically target Solana program vulnerabilities including missing ownership checks, insufficient signer validation, unchecked arithmetic overflows, unvalidated cross-program invocations, and account data manipulation, and develop proof-of-concept exploits to validate severity ratings before finalizing each report.

Hashlock is an Australian Web3 security firm founded in 2022 that specializes in smart contract auditing across 30+ blockchain networks, with a dedicated Solana practice covering the chain's account-based architecture, concurrent transaction processing, and Anchor framework trust assumptions. The firm's two-phase audit process—initial code review followed by a re-audit to verify remediation—ensures vulnerabilities are confirmed fixed before code reaches production. Hashlock's public GitHub portfolio lists over 200 audited clients spanning DeFi, gaming, real-world assets, and infrastructure, with disclosed engagements including Rocket Pool, 1inch, SushiSwap, EigenLayer, and Solana-specific work such as the 2024 audit of Balanced and ICON GMP contracts. The firm reports having helped secure more than $1.3 billion in on-chain assets, and states that no project that received a full Hashlock audit has subsequently been successfully exploited.

QuillAudits is a smart contract auditing firm that combines manual line-by-line code review with multi-researcher adversarial coverage, assigning 10–12 independent researchers per engagement to maximize adversarial breadth. A separate lead auditor pass and an internal Vigilant Squad validation step are built into each engagement to reduce false positives and catch issues that single-reviewer processes miss. On Solana specifically, their audits target six critical vulnerability classes unique to the network's account-based model and Rust programming environment: missing signer checks, missing ownership checks, cross-program invocation depth limits, unsafe Rust code blocks, over-reliance on Anchor abstractions, and dependency management risks in third-party libraries. Each audit delivers a full report with severity classifications, root-cause analysis, and remediation guidance, plus public certification and a leaderboard listing accepted by 50+ exchanges, with named Solana engagements including Pluto Fi, Fly Trade v2, Brahma Fi Console, and Memeswap.

ZAN's Expert Audit service provides professional manual smart contract security reviews with remediation guidance, targeting development teams seeking comprehensive assurance before production deployment. The service complements ZAN's automated scanning and represents a layered security approach that combines human specialist review with machine-driven detection across the same codebase. By offering both audit tiers under a single provider, ZAN reduces the overhead of coordinating separate security engagements for teams building on Solana and other networks. The Expert Audit draws on ZAN's broader security research, backed by AntChain Open Labs' work in applied cryptography and smart contract analysis. Teams can pair the audit service with ZAN's automated vulnerability scanning — which applies over 150 detection rules and AI-enhanced fuzz testing — to create a progressive review workflow scaled to project risk and timeline. This positions ZAN's audit offering as enterprise-standard smart contract security assurance backed by the technical credibility of Ant Group Digital Technologies.

Adevar Labs is a boutique Web3 security firm offering manual smart contract audits on Solana, Ethereum, and Aptos. Its White Glove Audits review every line of in-scope code, producing severity-categorized findings, remediation guidance, and an independent fix-review before sign-off. As of mid-2026, the firm has published 24 public audit reports covering DeFi, lending vaults, liquid staking, RWA tokenization, and cross-chain programs. The firm's client-selectable auditor model pairs project preference with independent internal severity calibration, reducing both score inflation and opacity common in the audit market. Technical coverage spans Rust, Solidity, Move, Go, and Vyper across SVM, EVM, and Move runtimes. Notable Solana clients include GLAM Protocol, DoubleZero, Carrot Lend, ORO Protocol, and Spiko.

Halborn is an enterprise-grade blockchain security firm specializing in smart contract audits across Rust and Anchor for Solana and 21 other execution environments. With more than 4,000 security assessments published and over 40 Solana-ecosystem audits completed, Halborn is one of the few firms with a fully auditable track record of protocol-level work on Solana. Serving as a strategic security partner to the Solana Foundation, Halborn identified two critical vulnerabilities in the SPL Token 2022 program before mainnet deployment. Its publicly accessible audit database at halborn.com/audits includes full findings, severity ratings, and remediation status—making Halborn audits a key benchmark when Solana-based protocols disclose their security posture to institutional investors and exchange listing teams.

Privacy Cash has completed 20 security audits as of mid-2026—14 covering the Solana program and 6 covering Base and EVM implementations—with named auditors including Accretion, HashCloak, Zigtur, and Kriko. Beyond traditional audits, the Solana on-chain program has been formally verified by Veridise, a cryptographic security firm specializing in ZK circuit and smart contract verification. The deployed program binary is anchored to a publicly posted on-chain hash, allowing independent verification that the running code matches the audited source. The upgrade authority for the deployed program is held by a multisig, and all ZK circuits and smart contract code are fully open-sourced, enabling community scrutiny alongside institutional audit coverage.

t54 provides pre-execution risk underwriting for AI agent transactions through Trustline, a real-time engine that aggregates identity signals, behavioral patterns, code audit results, and mandate scopes to issue a structured risk decision in under five seconds — before funds move rather than after. The system has screened over 20 million transaction records and verified more than 41,000 agents, with integration available through a REST API with webhook monitoring and compliance dashboard outputs. The Agentic Risk Standard quantifies agent trustworthiness as an auditable metric, enabling institutions to set differentiated access policies based on execution history and risk profile. t54 stress-tested its fraud detection through a $10,000 agentic fraud bounty program and is pursuing SOC 2 Type II certification, with AES-256 encryption across all data flows and a compliance advisor with 18 years of experience across the SEC, FDIC, and FINRA.

Almanax applies large language models to smart contract security across Solana, Ethereum, Base, Stellar, and Aptos. Its proprietary ALMX-1 model detects ecosystem-specific vulnerabilities — reentrancy, integer overflow, improper access control — and achieved state-of-the-art benchmark results. The platform launched the Web3 Security Atlas in December 2024, an open-source vulnerability dataset covering critical incidents across major chains, developed with TRM Labs, AnChain.AI, and Hypernative. The Solana Foundation integrates Almanax into its developer support program, providing Solana builders a one-year subscription. Clients include Phantom, Privy, Dfns, Hypernative, Algorand, Aptos, Stellar, and Keplr. Almanax has ethically disclosed hundreds of blockchain security issues, won competitions against thousands of researchers, and scanned over 100 million lines of code.

Sentry Wallet's SentryAI engine specifically targeted malicious smart contracts as one of its four main threat categories, scanning proposed transaction interactions before users could inadvertently authorize draining contracts or approve token transfers to hostile addresses. The system drew on on-chain intelligence derived from blockchain data patterns and real-world incident records from documented exploit events, combining these inputs to assess whether a proposed contract interaction presented a meaningful risk. Rather than displaying raw hexadecimal transaction data, the platform translated contract behavior into plain-language summaries explaining what an authorization would actually do and why it might be dangerous, helping users assess approval risk without needing to read smart contract code directly. This approach was designed to close a recognized gap in standard wallet interfaces, where token approval screens typically give users little information to distinguish a legitimate DeFi interaction from a drainer contract. The product applied its smart contract scanning layer across EVM-compatible networks alongside Bitcoin and Solana, giving users a consistent security experience regardless of which chain they were transacting on. Sentry Wallet offered these AI security features starting at ten dollars per month per user, with a free tier also available, targeting individual retail holders rather than enterprise deployments. The project was founded in the United Kingdom in late 2024, entering a market where contract exploits and approval-based drainer toolkits had proliferated to the point of representing a mainstream retail risk rather than an advanced-user concern. As of mid-2026, the project appears inactive and its domain has been repurposed, but it served as an early implementation of pre-signing contract analysis aimed at reducing retail exposure to malicious smart contract interactions.

CODESPECT's flagship service is smart contract auditing, following a four-phase, SEAL-aligned methodology that spans static analysis, manual review, fuzzing and invariant testing, and fix verification. Engagements typically run one to five weeks and are structured across seven stages — scoping, kickoff, primary review, interim findings, a fix period, fix verification, and final report delivery. The firm supports Solidity for EVM chains, Rust and Anchor for Solana, Cairo for Starknet, and additional languages including Move, Sui, and Fogo, treating each as a primary supported stack rather than a secondary offering. For Solana specifically, CODESPECT's audit practice targets risk classes particular to the account model — including cross-program invocation patterns, signer validation, account ownership checks, and interactions between Anchor macros and program logic. Its research blog documents original findings from live engagements, including a 2026 analysis of PDA seed collision vulnerabilities arising from sequential counter designs in token allocation contracts. The firm also offers SpecSiege, a post-audit add-on that deploys up to 50 independent researchers in a parallel codebase review before mainnet deployment, providing an additional verification layer for novel or mathematically complex protocols.

HAPI Protocol embeds threat intelligence directly at the smart contract layer, enabling DeFi protocols to screen user wallets automatically before any transaction executes. Smart contracts deployed across multiple blockchains maintain a queryable registry of flagged addresses categorized by risk type and assigned ban periods ranging from twelve hours to permanent. DeFi protocols integrate these contracts into their own logic and query them before executing user transactions, allowing coordinated, trustless responses to emerging threats without manual intervention from protocol teams. The oracle network sources intelligence from established blockchain analytics firms including Chainalysis and Crystal Blockchain, relaying data to on-chain registries with minimal latency — the defining design constraint being that threat data must arrive faster than attackers can move funds. The Solana implementation is built on the Anchor framework and has accumulated over 500 commits on GitHub. CertiK and Hacken have both completed security audits of the protocol, with CertiK assigning a score of 4.0.

MixBytes is a blockchain security firm providing smart contract audits, code reviews, and security consulting for DeFi protocols. Founded in 2017, it conducts full public audits, confidential code reviews, and ongoing security consulting for teams requiring continuous guidance rather than point-in-time assessments. With over 300 completed engagements across Ethereum-compatible chains, Polkadot, Substrate, and Solana, the firm maintains a public audit archive on GitHub with more than 500 stars. Each engagement follows a four-phase process: independent analysis with adversarial enumeration of attack vectors, re-audit verifying that implemented fixes are correct and do not introduce new issues, final deployment verification confirming mainnet contracts match the reviewed codebase, and optional continuous support for protocol upgrades. Clients work with a dedicated team of three senior full-time auditors who remain consistent across repeat engagements, with the firm's CTO reviewing all reports before delivery. Documented clients include Lido Finance, Yearn Finance, Aave, 1inch, and Curve Finance.

SlowMist offers white-box smart contract audits for Solana programs, reviewing source code for the full range of vulnerabilities specific to Solana's account model and execution environment. The firm's Solana-focused audit methodology covers account ownership validation, program ID and signer authentication, SPL token standard compliance, Program Derived Address legitimacy, and rent adequacy checks. SlowMist has audited over 1,500 smart contracts across multiple blockchains, accumulating extensive experience with real-world exploit patterns. The team publishes and actively maintains a Solana Smart Contract Security Best Practices guide on GitHub, making their audit findings accessible to the broader developer community and helping protocol teams build with fewer critical flaws from the outset.