ValueDefi
HackedDeFi · born 2020 · ✝ 2021
Hit repeatedly, ironically after an 'are you brave enough?' taunt.
ValueDefi was a yield and AMM protocol on BNB Chain that suffered multiple exploits. Across these incidents a math/logic flaw let attackers drain up to roughly $11M.
- Peak
- ~$11M stolen (largest hit)
- Cause
- Hacked
- Year of death
- 2021
☠️ Cause of death
Faulty pricing and accounting math was exploited repeatedly, with attackers manipulating pool calculations to withdraw far more value than they put in.
📓 Lessons left behind
- —Repeated exploits signal systemic, not one-off, math flaws.
- —Taunting attackers in code comments invites them in.
- —Reaudit the whole protocol after the first breach, not just the patch.
🌱 The idea that survived
Post-incident reaudits
Showed that surviving one exploit demands a full reaudit, since attackers return to probe untouched math.
#defi#amm#math-bug#bsc