Incident All ledgers
Tectonic: $124.5m
Tectonic lost $124.5m on 30 August 2026. Ranked 36th of 1,272 crypto failures, with method, returned funds and comparable incidents.
- Date
- 30 August 2026
- Lost
- $124.5m
- Returned or repaid
- None recorded
- Target
- DeFi Protocol
- Category
- Token & Share Accounting
- Method
- Donation Attack
- Chains
- Cronos
Tectonic lost about $124.47M after an attacker inflated the tTONIC exchange rate via direct TONIC transfers and pushed up TONIC's price on an unsmoothed price feed, then borrowed and removed over $120M in roughly 11 minutes.
Against the ledger
- It ranks 36th of the 1,272 incidents with a known loss, and 6th in 2026.
- It accounts for 48.7% 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 8.6% of that.
- The ledger records no returned funds.
Other incidents named Tectonic
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 22 Feb 2024 | Tectonic | $250,000 | DeFi Protocol | Protocol Logic | — |
Closest in size by the same method
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 22 May 2025 | Cetus CLMM | $223.0m | DeFi Protocol | Arithmetic Error | — |
| 13 Mar 2023 | Euler V1 | $197.0m | DeFi Protocol | Donation Attack | $240.0m |
| 29 Sept 2021 | Compound V2 | $147.0m | DeFi Protocol | Arithmetic Error | — |
| 03 Nov 2025 | Balancer V2 | $128.0m | DeFi Protocol | Rounding Error | — |
| 05 Jun 2022 | Elrond | $113.0m | DeFi Protocol | Infinite Mint | — |
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, “Tectonic, failures ledger”, data to 2 November 2026, https://bitminer.io/ledger/incident/tectonic-2026-08-30/. How this is built