Welcome to DeFi, cybersecurity’s most rewarding frontier

On Immunefi, hackers secure DeFi contracts, save funds from theft, and get paid doing it.

Trusted by
synthetix.svg
sushiswap.svg
nexus-mutual.svg
chainlink-logo.png

The world’s biggest bug bounties

Immunefi has the largest bug bounties on any platform. Since the start of this year, we’ve already paid out +$2,000,000 in bounties.

We fight to get you paid

We get paid when you get paid, so we'll fight hard to make sure you get fair pay for your hard work.

The most interesting puzzles in the world

DeFi vulnerabilities are the most high stakes puzzles in the world. Find a bug and prove that there's no challenge you can't crack.

Found a critical vulnerability on a project without a bounty program?

Get help now

How it works

1. Explore bounties

We have over $22m in bug bounties available with the best projects in DeFi. Explore our bounties and find programs that best match with your skills.

2. Review code

Read bounty requirements and review code that’s in scope.

3. Submit bugs

When you find a vulnerability, submit it in the Immunefi web application. We'll get back to you as soon as reasonable.

4. Get paid

After confirming the validity of the bug, we'll work with you and the client to fix it and get you paid for your hard work.

Alexander found a critical vulnerability in ArmorFi’s smart contract and got the biggest bounty payout in history – $1,500,000.

0xRevert found a critical vulnerability in Fei Protocol's smart contract and got a $500,000 payout.

Don’t work alone, learn from other hackers in our community

Join our whitehat community and get notified when new bounties launch on the platform.

$1,700,000
In bounties paid out
$41,021,984
Bounties available
57
Vulnerabilities disclosed
$28,900,000
In hacks prevented