C4 audit contests find more bugs faster than any other method.

Start your audit within 48 hours. Seriously.
Join #i-want-an-audit in Discord

or

Message us on Telegram

Wardens

Protect the DeFi ecosystem from threats by auditing code.

Sponsors

Create prize pools to attract wardens to audit their project.

Judges

Allocate awards to wardens based on performance.

$50,000 USDC Putty contest

An order-book based american options market for NFTs and ERC20s.

0 days + 04 43 38 until contest ends
View ContestView RepoSubmit Finding

$75,000 USDC Juicebox V2 contest

The decentralized fundraising and treasury protocol.

4 days + 04 43 38 until contest ends
View ContestView RepoSubmit Finding

Upcoming Contests

$35,000 USDC Swivel v3 contest

The Capital-Efficient Protocol For Fixed-Rate Lending.

3 day contest

8 days + 04 43 38 until contest starts
View Contest
The crowd goes wild

This result far exceeded previous experiences I’ve had with 2–4 week-long audits by individual companies. I highly recommend the Code 423n4 competitive audit approach for anyone starting a new project.

LSDan ElasticDAO

Speaking of bold & ambitious security projects, another one is @code423n4 — "a community-driven approach to competitive smart contract audits," with sponsors like @SlingshotCrypto @maplefinance @NFTX_ & @yield.

It's a great place for aspiring auditors to compete & learn 🐞🧐🔐💰

RajΞΞv (@0xRajeev)

Great work everyone! This was a fantastic experience.

Ghoul.sol (@GhoulSol)

Overall, I have to say you guys have some very smart folks and some of the findings identified are quite good! Definitely a much better experience than the traditional audit we had gone through.

JasonFairside

Amazing response for @code423n4 sponsorship. Great community @scott_lew_is @0xzak has built. This will change the future of the auditing industry.

Furthering deflationary $ETH on top of #eip1559 , I'll be sponsoring an additional 1000 VETH to wardens of @VaderProtocol https://t.co/99a9N0ZTAH

🔥Mervyn🔥 (@mervynchng89)

Awesome job wolf pack! 🐺 🐺 🐺

Special Thanks to @cmichelio @shw9453 @0xRajeev from @FairSideNetwork

You guys did NOT disappoint @0xzak @scott_lew_is Keep crushing it! 👏 👏 👏 https://t.co/RU2nSQCOxG

Brandon Brown 🔥 (@Brandon_FSN)

Want to give a massive shout out to all the wardens that took part in the Reality Cards contest last week- you guys found some really amazing stuff- so good that we're considering doing a second round! 🤣thanks so much guys!

AndrewReality Cards

Breadth and depth.

We got some wardens that looked at every line of the code for common mistakes. We got wardens that looked for economic attacks. We got trained auditors going by the book, and we got rookies with unbounded hunger to find bugs. I feel we got an excellent audit.

frob.eth | Alberto Cuesta Cañada (@alcueca)

And the results.

I can't give details yet, but there were two big issues that would have been fatal, about six that would have been uncomfortable, and about 30 that were just unaesthetic.

We got our money's worth. Don't go out into the wild without an audit. pic.twitter.com/DIm992DxNP

frob.eth | Alberto Cuesta Cañada (@alcueca)

C4 contests attract new, unique and complicated projects so it is a perfect learning opportunity... Here projects seriously invest in their security so it is always a motivation to try my best to find bugs in their code.

Pauliax/ThunderC4 Warden
Want to learn more?