Lead · Risk Identification
Euler Finance had audit reports from two top firms before being hacked, but the vulnerability was introduced in the last upgrade — and the upgraded code was never re-audited. Audit doesn't mean 100% safe. These five signals are the real way to evaluate DeFi protocol security.
Fiona Lau
·
July 03, 2026
In 2023, Euler Finance suffered a flash loan attack, losing $197 million. In 2022, Nomad Bridge was hacked for $190 million. In 2021, Cream Finance was hacked three times for cumulative losses exceeding $130 million. These were all first-tier DeFi protocols — not unknowns, with audit reports, with billions in TVL, yet still got hacked. This leaves many users in a dilemma: 'How should I...