Comprehensive reviews for blockchain infrastructure - delivered by security experts who understand the critical nature of consensus and node operations.
Cantina’s Web2 Security Reviews help DeFi protocols protect the critical off-chain components behind governance dashboards, oracle services, keepers, APIs, and internal admin tools. Our expert reviewers surface implementation-level risks in the infrastructure that supports billions in on-chain value.
Whether you operate a custom frontend, centralized oracle backend, or protocol-owned API, we help you catch authentication flaws, privilege escalation paths, and service misconfigurations that put protocol control or user trust at risk.
We focus on the Web2 attack surfaces that most commonly support or extend DeFi protocols:
We scope reviews for custom internal apps, third-party infrastructure, and multi-surface deployments where off-chain issues can result in loss of funds or governance failure.
Security issues in traditional systems remain one of the leading causes of loss in Web3. From dashboards and admin panels to APIs and cloud services - your off-chain infrastructure is just as critical as your contracts.
Partner with Cantina to secure the full picture.
It’s a targeted assessment of the off-chain infrastructure supporting your smart contracts—like governance UIs, keeper backends, vote relayers, or multisig coordination apps.
Because many DeFi systems rely on off-chain automation, frontend wallets, and backend scripts. These often control or influence on-chain execution—and attackers know it.
Yes. We review cron jobs, update logic, admin APIs, and hosted services that interact with or control on-chain contracts.
Yes. Web2 reviews typically begin within 5 business days and can be bundled with your smart contract audit or bounty.
Absolutely. We frequently assess governance UIs, team tools, fund tracking systems, and vault controllers—especially those with elevated permissions.
Yes. Many DeFi teams bundle both to ensure that user-facing surfaces and high-trust internal tools are hardened together.
A formal report with prioritized findings, technical proof, and remediation steps. Fix validation is available if you’d like confirmation post-patch.
Spearbit provides high-end security reviews with teams hand-selected from a network of top Web3 security talent. Spearbit reviews must include a minimum of two Lead Security Researchers. These reviews are designed for depth and specialization, assessing some of the most complex decentralized systems in the ecosystem.
Cantina Reviews allow for more flexibility, providing you with a team of expert security researchers without Spearbit’s two Lead Security Researcher minimum. This model allows for faster onboarding and/or budget-flexibility while leveraging the same pool of expert security talent.
