🔍 Protocol Hack Analysis

Learn from the past. Detailed breakdowns of major DeFi hacks and exploits, what went wrong, and how to prevent similar attacks.

$1764M+
Total Losses Analyzed
8
Case Studies
6+
Attack Vectors
4
Chains Covered
Showing 8 of 8 case studies
💰 $197M LostMar 2023

Euler Finance

Ethereum

The $197M Flash Loan Exploit

A sophisticated attack combining a donation function flaw with flash loans to drain the lending protocol.

🔓Donation Attack + Flash Loan
Flash LoanDonation AttackLending
💰 $70M LostJul 2023

Curve Finance

Ethereum

Vyper Compiler Reentrancy Bug

A bug in the Vyper compiler broke reentrancy locks, affecting multiple Curve pools.

🔓Reentrancy (Compiler Bug)
ReentrancyCompiler BugVyperDEX
💰 $114M LostOct 2022

Mango Markets

Solana

Price Oracle Manipulation

Attacker manipulated the MNGO token price oracle to borrow against inflated collateral.

🔓Oracle Manipulation
OraclePrice ManipulationSolana
💰 $625M LostMar 2022

Ronin Network

Ethereum

Private Key Compromise

North Korean hackers compromised 5 of 9 validator keys through social engineering.

🔓Compromised Validators
BridgePrivate KeyValidators
💰 $326M LostFeb 2022

Wormhole

Solana

Signature Verification Bypass

Attacker bypassed signature verification to mint unbacked wrapped ETH on Solana.

🔓Input Validation
BridgeSignatureSolana
💰 $182M LostApr 2022

Beanstalk

Ethereum

Governance Flash Loan Attack

Flash loan used to gain majority voting power and pass a malicious governance proposal.

🔓Flash Loan Governance
Flash LoanGovernanceDAO
💰 $130M LostOct 2021

Cream Finance

Ethereum

Oracle & Flash Loan Combo

Complex attack involving price oracle manipulation and flash loans to drain lending pools.

🔓Oracle Manipulation
Flash LoanOracleLending
💰 $120M LostDec 2021

BadgerDAO

Ethereum

Front-End Compromise

Attacker injected malicious scripts into the website to steal user approvals.

🔓Front-End Attack
Front-EndApprovalPhishing

2023 Attack Timeline

Major DeFi exploits of the year

Mar 2023

Euler Finance

Donation Attack + Flash Loan

$197M
Jul 2023

Curve Finance

Reentrancy (Compiler Bug)

$70M