Smart Contract Audit Competitions & Bug Bounty Platforms

2 Active contests
$124,200$124K Active prize pool
505 Bug bounties
6 Platforms

Last updated Jul 09, 2026 · 01:13 UTC

Showing 261–280 of 425

2 audit contests423 bug bounty programs

Protocol Source Prize Window Link
Stackup Bounty
Solidity
Cantina Active
$100K max Ongoing View
Kiln Web / Infra
Solidity
Cantina Active
$100K max Ongoing View
Monad.xyz UI
Solidity
Cantina Active
$100K max Ongoing View
Superform Bug Bounty Program
Solidity
Cantina Active
$100K max Ongoing View
BitGo Bug Bounty
Solidity
Cantina Active
$75K max Ongoing View
Rheo
Solidity
Cantina Active
$50K max Ongoing View
doppler-contracts
Solidity
Cantina Active
$50K max Ongoing View
Kuru Bug Bounty
Solidity
Cantina Active
$50K max Ongoing View
Aztec Network Bug Bounty
Solidity
Cantina Active
$50K max Ongoing View
Perena Bug Bounty
Solidity
Cantina Active
$25K max Ongoing View
Circuit
Solidity
Cantina Active
$20K max Ongoing View
deri-protocol
Solidity
Cantina Active
$10K max Ongoing View
alchemy-web
Solidity
Cantina Active
$10K max Ongoing View
vetrafi-bounty
Solidity
Cantina Active
$8K max Ongoing View
Cantina Bounty
Solidity
Cantina Active
$5K max Ongoing View
Injective
Solidity
Cantina Active
$500K max Ongoing View
Allbridge
bridgewebsmart contract
Hackenproof Active
$4K max Ongoing View
Hyperbridge Protocol
Rust Solidity bridgesmart contract
Hackenproof Active
$50K max Ongoing View
Cetus Web
dappwebapps
Hackenproof Active
$10K max Ongoing View
Ample Smart Contracts
Solidity defismart contract
Hackenproof Active
$20K max Ongoing View
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Cantina Active

Superform Bug Bounty Program

$100K Max bounty
Ongoing program
View on Cantina
Cantina Active

Aztec Network Bug Bounty

$50K Max bounty
Ongoing program
View on Cantina

Smart Contract Audit Competition & Bug Bounty Platforms Compared

Six major platforms host the Web3 audit competitions and smart contract bug bounty programs aggregated above. Click any platform to see only its active contests.

Comparison of the major smart contract audit competition and bug bounty platforms.
Platform Type Typical Prize Contest Length Best For
Code4rena Audit contests $50K to $500K 3 to 14 days DeFi protocols pre-launch
Sherlock Contests + bounties $50K to $300K 7 to 30 days Insurance-backed audits
CodeHawks Audit contests + First Flights $5K to $200K 3 to 21 days Newer auditors building a track record
Cantina Mega-comps + bounties $200K to $2M+ 14 to 30 days Experienced researchers, high-value protocols
Immunefi Ongoing bug bounties Up to $15M per critical Ongoing Production protocol vulnerability hunting
HackenProof Bounties + crowdsourced audits $1K to $1M+ Ongoing or time-boxed Managed Web3 programs and exchange/protocol bounties

Frequently Asked Questions

What are the best smart contract bug bounty platforms?

The leading Web3 bug bounty platforms are Immunefi (largest, $15M max payouts on DeFi protocols), Cantina (Spearbit's bounty program plus audit competitions), HackenProof (managed Web3 bounties and crowdsourced audits), Sherlock (audit contests with insurance-backed bounties), and Code4rena (best known for time-boxed audit competitions). Codehawks rounds out the field with Cyfrin-run contests focused on emerging protocols and beginner-friendly First Flights.

Which audit competition platform pays the most?

Cantina runs the largest audit competitions ($2M+ prize pools for protocols like EigenLayer and Uniswap v4). Immunefi pays the highest per-bug bounty (up to $15M for critical findings). Code4rena and Sherlock typically run $100K-$500K audit contests. Codehawks First Flights are smaller but accessible to newer auditors.

How do smart contract audit competitions work?

Audit competitions invite security researchers to review a protocol's smart contract code for a fixed prize pool over 1-4 weeks. Rewards are split based on unique valid findings, weighted by severity (critical, high, medium). Code4rena, Sherlock, Codehawks, and Cantina are the main platforms.

How much can you earn in a smart contract audit competition?

Top auditors earn $10,000-$500,000+ per competition. Cantina and Code4rena regularly run $500K-$2M prize pool contests. Bug bounties can pay up to $15M per critical finding on platforms like Immunefi.

What is the difference between a bug bounty and an audit contest?

Audit contests run for a fixed time window with a fixed prize pool shared among all valid findings. Bug bounties are ongoing programs where each valid submission earns a direct per-vulnerability reward (often $50K-$15M depending on severity). Bug bounties require finding a real vulnerability in production code.

How do I get started with smart contract auditing?

Learn the most common vulnerability classes first: reentrancy, flash loan attacks, oracle manipulation, and access control. The SCH Smart Contract Hacking Course covers all the core attack patterns that audit competitions test, starting from zero experience.

How to Start Competing in Smart Contract Audits

A practical path from learning vulnerability classes to submitting your first contest finding.

  1. Learn the core vulnerability classes

    Master reentrancy, access control, oracle manipulation, flash loan attacks, and arithmetic overflows. These five classes account for most contest findings.

  2. Practice on retired contests

    Read every public report from past Code4rena and Sherlock contests. Try to spot findings yourself before reading the writeup. This is how every top auditor trained.

  3. Start with CodeHawks First Flights

    First Flights are small audit contests designed for newer auditors. Prize pools are under $20K, scope is small, and competition is lighter. They build real submission history.

  4. Enter your first full competition

    Pick an active audit contest from the tracker above filtered by Solidity and a $50K-$200K prize range. Spend 20 to 40 hours on the contest, even if you only find one valid medium-severity issue.

  5. Build a public track record

    Publish your findings, share writeups on Twitter and Mirror, and start accumulating valid submissions across multiple platforms. A documented track record is what opens bug bounty access and full-time auditor roles.