Incident All ledgers
Coinbene: $40.0m
Coinbene lost $40.0m on 25 March 2019. Ranked 87th of 1,272 crypto failures, with method, returned funds and comparable incidents.
- Date
- 25 March 2019
- Lost
- $40.0m
- Returned or repaid
- None recorded
- Target
- CEX
- Category
- Access Control
- Method
- Improper Access Control
- Chains
- Ethereum
Coinbene lost about $40 million when its hot wallet was compromised and its ERC-20 tokens were drained to unknown addresses. The exchange described the incident as routine maintenance while customer assets were being moved out.
Against the ledger
- It ranks 87th of the 1,272 incidents with a known loss, and 3rd in 2019.
- It accounts for 60.5% of the $66.1m in known losses in March 2019.
- 225 incidents in the ledger are classified as Access Control, for $1.96bn in total. This one is 2.0% of that.
- The ledger records no returned funds.
Closest in size by the same method
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 08 Oct 2021 | Mirror | $90.0m | DeFi Protocol | Improper Access Control | — |
| 01 Apr 2025 | UPCX | $70.0m | DeFi Protocol | Proxy Upgrade Hijack | — |
| 26 Mar 2024 | Munchables | $62.5m | Gaming | Proxy Upgrade Hijack | — |
| 10 Jun 2018 | Coinrail | $37.2m | CEX | Improper Access Control | — |
| 01 Jul 2017 | Parity | $30.0m | Wallet | Uninitialized Proxy | — |
All failures in 2019 · 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, “Coinbene, failures ledger”, data to 2 November 2026, https://bitminer.io/ledger/incident/coinbene-2019-03-25/. How this is built