Incident All ledgers
Nesa: $50.0m
Nesa lost $50.0m on 24 August 2026. Ranked 71st of 1,272 crypto failures, with method, returned funds and comparable incidents.
- Date
- 24 August 2026
- Lost
- $50.0m
- Returned or repaid
- None recorded
- Target
- Chain
- Category
- Token & Share Accounting
- Method
- Arithmetic Error
- Chains
- Nesa
Nesa lost $50 million after confirming exploitation of a Cosmos EVM balance-accounting vulnerability; the exact shared underflow mechanism is strongly supported but not shown at transaction level for Nesa.
Against the ledger
- It ranks 71st of the 1,272 incidents with a known loss, and 9th in 2026.
- It accounts for 19.6% of the $255.5m in known losses in August 2026.
- 160 incidents in the ledger are classified as Token & Share Accounting, for $1.45bn in total. This one is 3.4% of that.
- The ledger records no returned funds.
Closest in size by the same method
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 28 Apr 2021 | Uranium Finance | $57.2m | DeFi Protocol | Arithmetic Error | — |
| 22 Nov 2023 | KyberSwap Elastic | $48.0m | DeFi Protocol | Rounding Error | — |
| 02 May 2021 | Spartan | $30.5m | DeFi Protocol | Incorrect Share Accounting | — |
| 05 Mar 2021 | Paid Network | $27.0m | DeFi Protocol | Infinite Mint | — |
| 08 Jan 2026 | Truebit | $26.4m | DeFi Protocol | Arithmetic Error | — |
All failures in 2026 · The failures ledger
Amounts are DefiLlama’s estimates and can change as incidents are revalued. Its returned figure can include money a company repaid itself, not only funds recovered from attackers. Source: DefiLlama.
Cite this Bitminer.io, “Nesa, failures ledger”, data to 2 November 2026, https://bitminer.io/ledger/incident/nesa-2026-08-24/. How this is built