Incident All ledgers
Sonne Finance: $20.0m
Sonne Finance lost $20.0m on 15 May 2024. Ranked 136th of 1,272 crypto failures, with method, returned funds and comparable incidents.
- Date
- 15 May 2024
- Lost
- $20.0m
- Returned or repaid
- None recorded
- Target
- DeFi Protocol
- Category
- Token & Share Accounting
- Method
- Donation Attack
- Chains
- Optimism
Sonne Finance on Optimism lost about $20M on May 15, 2024 to a donation attack. Because a new market's setup ran as separate timelock transactions, the attacker controlled their order and manipulated collateral factors before safeguards took effect.
Against the ledger
- It ranks 136th of the 1,272 incidents with a known loss, and 18th in 2024.
- It accounts for 5.6% of the $359.0m in known losses in May 2024.
- 160 incidents in the ledger are classified as Token & Share Accounting, for $1.45bn in total. This one is 1.4% of that.
- The ledger records no returned funds.
Closest in size by the same method
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 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 | — |
| 20 May 2024 | Gala | $22.3m | DeFi Protocol | Infinite Mint | — |
| 27 Jan 2024 | Somesing | $11.6m | DeFi Protocol | Unbacked Mint | — |
All failures in 2024 · 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, “Sonne Finance, failures ledger”, data to 2 November 2026, https://bitminer.io/ledger/incident/sonne-finance-2024-05-15/. How this is built