End-To-End Security Made Simple

We work with financial services and blockchain organizations to protect the world's most critical code.


Cantina and Spearbit combine a world-class security researcher network with purpose-built tools - delivering scalable and effective solutions pre-deployment through runtime all in one platform.

Trusted by the best

Matter Labs logo - ZK rollup security assessment partner.Matter Labs logo - ZK rollup security assessment partner.
Coinbase logo - major cryptocurrency exchange security partner.Coinbase logo - major cryptocurrency exchange security partner.
Uniswap logo - leading DEX security audit partner.Uniswap logo - leading DEX security audit partner.
Aave logo - leading DeFi protocol security partner.Aave logo - leading DeFi protocol security partner.
SAP logo - enterprise blockchain security client.SAP logo - enterprise blockchain security client.
Babylon protocol logo - web3 security partner.Babylon protocol logo - web3 security partner.
MakerDAO logo - leading DeFi protocol security partner.MakerDAO logo - leading DeFi protocol security partner.
Morpho logo - lending protocol security audit client.Morpho logo - lending protocol security audit client.
Pendle logo - yield protocol security audit partner.Pendle logo - yield protocol security audit partner.
Polygon logo - Layer 2 blockchain security client.Polygon logo - Layer 2 blockchain security client.
zkSync logo - ZK rollup security assessment partner.zkSync logo - ZK rollup security assessment partner.
Eigen Layer logo - blockchain infrastructure security client.Eigen Layer logo - blockchain infrastructure security client.
Optimism logo - Layer 2 security audit client.Optimism logo - Layer 2 security audit client.
OpenSea logo - NFT marketplace security partner.OpenSea logo - NFT marketplace security partner.
Sushi logo - DEX protocol security partner.Sushi logo - DEX protocol security partner.
Level logo - web3 penetration testing client.Level logo - web3 penetration testing client.
POAP logo - proof of attendance protocol security client.POAP logo - proof of attendance protocol security client.
Matter Labs logo - ZK rollup security assessment partner.Matter Labs logo - ZK rollup security assessment partner.
Coinbase logo - major cryptocurrency exchange security partner.Coinbase logo - major cryptocurrency exchange security partner.
Uniswap logo - leading DEX security audit partner.Uniswap logo - leading DEX security audit partner.
Aave logo - leading DeFi protocol security partner.Aave logo - leading DeFi protocol security partner.
SAP logo - enterprise blockchain security client.SAP logo - enterprise blockchain security client.
Babylon protocol logo - web3 security partner.Babylon protocol logo - web3 security partner.
MakerDAO logo - leading DeFi protocol security partner.MakerDAO logo - leading DeFi protocol security partner.
Morpho logo - lending protocol security audit client.Morpho logo - lending protocol security audit client.
Pendle logo - yield protocol security audit partner.Pendle logo - yield protocol security audit partner.
Polygon logo - Layer 2 blockchain security client.Polygon logo - Layer 2 blockchain security client.
zkSync logo - ZK rollup security assessment partner.zkSync logo - ZK rollup security assessment partner.
Eigen Layer logo - blockchain infrastructure security client.Eigen Layer logo - blockchain infrastructure security client.
Optimism logo - Layer 2 security audit client.Optimism logo - Layer 2 security audit client.
OpenSea logo - NFT marketplace security partner.OpenSea logo - NFT marketplace security partner.
Sushi logo - DEX protocol security partner.Sushi logo - DEX protocol security partner.
Level logo - web3 penetration testing client.Level logo - web3 penetration testing client.
POAP logo - proof of attendance protocol security client.POAP logo - proof of attendance protocol security client.

Solutions Overview

Whatever your security challenge, we’ve got you covered.

Cantina
Spearbit

Smart Contract Reviews

The best of the best, for when you need a world-class code review

Cantina
Spearbit

Competitions

Harness 100s of researchers at once in a crowdsourced format

Cantina
Spearbit

Bug Bounties

When you need long-term coverage on your live code

Cantina
Spearbit

Web2 Reviews

Protect against more traditional vulnerabilities and bolster your team's OpSec

Cantina
Spearbit

Smart Contract Reviews

For teams launching fast and wanting flexibility

Cantina
Spearbit

Multisig

Rapid-response, expert-driven support to safeguard your high-value assets

Cantina
Spearbit

Advanced Security Assessments

Specialized reviews to catch issues before they come exploits

Cantina
Spearbit

Incident Response

Detect, respond, and resolve threats and attacks with the most talented security minds

Spearbit

Spearbit is the industry's most elite option for reviews, available exclusively on Cantina. A highly-curated network of security experts, the team is hand-selected to safeguard the next generation's most sophisticated infrastructure.

Our bespoke solutions have protected billions in assets for the world's innovators.

Cantina Code

Shaped by the practices and principles of best-in-class security, Cantina Code allows organizations to action, communicate, and review with ease.

Findings

Making it easy to see findings submitted in real-time

Recent findings from security reviews, showing issue tracking interface.

Pings

Filtering the ability to communicating directly with teams based on a researcher’s reputation level.

Bug bounty and web3 security audit progress tracker.

Notifications

Get alerts for every crucial piece of information you need to know

Security audit notifications in Cantina, alerting researchers to new findings like replay attack risks in Biconomy Nexus.

Filtering

Add filters to your search by severity, author, or custom labels to find exactly what you’re looking for.

Security finding status labels showing escalation, confirmation, rejection, duplicate, and acknowledgment options.

Portfolio

Why The Best Trust Us

Uniswap - AMM protocol security assessment client.

Working with Cantina, especially in the lead up to v4 launch, has been invaluable. The team has been extremely responsive to all of our needs and their end to end approach to security has given us an increased sense of assurance: from the depth of the reviews, to the competition process, and the bounty facilitation.

Alice Henshaw, Senior Protocol Engineer at Uniswap Labs
February 1, 2025
Euler - DeFi lending security assessment client.

They integrated seamlessly with our team, approaching each issue with care and thoroughness. This strong partnership, focused on finding the best solution, exemplified their dedication to addressing complex security risks.

Erik Arfvidson, Head of Security at Euler
October 17, 2024
Morpho - DeFi protocol smart contract auditing partner.

We highly recommend Cantina Competitions for any protocol needing comprehensive bug coverage. The Cantina Code platform has made collaboration and triaging a breeze with the security researchers for the Morpho competition.

Merlin Egalite, Co-Founder of Morpho
November 14, 2024
Superform logo - cross-chain security audit partner.

Cantina is a must for any protocol looking to enhance their security review process.

Vikram Arun, Co-Founder of Superform
February 28, 2022
Alchemy logo - bug bounty partner

Moving our bug bounty to Cantina has been great. In the past we had to deal with a bunch of spam submissions that weren't getting triaged well, but with Cantina it's been a breeze. The triagers are deeply knowledgable with smart contract development, so we don't have to waste engineering time responding to low quality submissions.

Adam Egyed, Tech Lead at Alchemy
March 12, 2025
Injective Protocol Cantina Testimonial

We’ve been impressed by Cantina’s triage process — the team dives deep into complex, domain-specific code to validate reported vulnerabilities and assess real impact. Their rigorous approach ensures our engineers stay focused, reviewing only actionable and meaningful issues.

Achilleas Kalantzis, Head of Strategy at Injective
March 10, 2025

Elevate Your Organization’s Security

Cantina

Scaleable security solutions

Spearbit

High signal security reviews
Talk To Us