Last updated Aug 23, 2026 · 12:56 UTC
Showing 1–20 of 435
11 audit contests424 bug bounty programs
| Protocol | Source | Prize | Window | Link |
|---|---|---|---|---|
|
Europeum TCR SC DualDefense Audit
|
Hackenproof
Active
|
$2K |
…
Aug 18 - Aug 25, 2026
7 days
|
View |
|
Europeum Bootstrap SC DualDefense Audit
|
Hackenproof
Active
|
$2K |
…
Aug 18 - Aug 25, 2026
7 days
|
View |
|
Europeum Timestamp SC DualDefense Audit
|
Hackenproof
Active
|
$2K |
…
Aug 18 - Aug 25, 2026
7 days
|
View |
|
Audit Comp | Quantus
|
Immunefi
Active
|
$20K |
…
Aug 12 - Aug 25, 2026
13 days
|
View |
|
Audit Comp | Firelight
|
Immunefi
Active
|
$20K |
…
Aug 12 - Aug 25, 2026
13 days
|
View |
|
TCG-VAULT SC DualDefense Audit
|
Hackenproof
Active
|
$5K |
…
Aug 03 - Sep 02, 2026
30 days
|
View |
|
Zendex SC DualDefense Audit
|
Hackenproof
Active
|
$2K |
…
Aug 18 - Sep 09, 2026
22 days
|
View |
|
Audit Competition | ENS
|
Immunefi
Active
|
$70K |
…
Aug 18 - Sep 14, 2026
27 days
|
View |
|
Starknet Blockchain/DLT
|
Hackenproof
Active
|
$250K max |
…
Jul 01 - Sep 30, 2026
91 days
|
View |
|
AlphaSec Web & Smart Contracts
|
Hackenproof
Active
|
$10K max |
…
Feb 05 - Feb 04, 2027
364 days
|
View |
|
SuperEarn Web & Smart Contracts
|
Hackenproof
Active
|
$30K max |
…
May 27 - May 26, 2027
364 days
|
View |
|
ADI Foundation zkVM Verification
|
Hackenproof
Active
|
$10K max | Ongoing | View |
|
Monday Trade Web
|
Hackenproof
Active
|
$3K max | Ongoing | View |
|
Solv Smart Contracts
|
Hackenproof
Active
|
$50K max | Ongoing | View |
|
Hyperbridge Protocol
|
Hackenproof
Active
|
$50K max | Ongoing | View |
|
Whitechain Bridge
|
Hackenproof
Active
|
$10K max | Ongoing | View |
|
Solv Web & Infrastructure
|
Hackenproof
Active
|
$20K max | Ongoing | View |
|
ZO Finance Web
|
Hackenproof
Active
|
$10K max | Ongoing | View |
|
Kaia Protocol
|
Hackenproof
Active
|
$30K max | Ongoing | View |
|
ZO Finance Smart Contracts
|
Hackenproof
Active
|
$10K max | Ongoing | View |
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Immunefi
Active
Immunefi
Active
Hackenproof
Active
Hackenproof
Active
Immunefi
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
Hackenproof
Active
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.
| 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 |
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.
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.
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.
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.
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.
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.
A practical path from learning vulnerability classes to submitting your first contest finding.
Master reentrancy, access control, oracle manipulation, flash loan attacks, and arithmetic overflows. These five classes account for most contest findings.
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.
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.
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.
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.