Syscoin bridge exploit on 2026-06-07
Bridge exploit, 7 Jun 2026. Last verified 4 Nov 2026.
notable
Reported loss
Not in USD
see the amount as stated below
Recovered
Not in USD
5 billion SYS returned and burned
Status
Funds recovered
updated 26 Oct 2026
Date
other
Summary
On 2026-06-07 an attacker exploited an interpretation mismatch between Syscoin Core and the NEVM relay in the Syscoin UTXO-to-NEVM bridge, causing an unauthorized release of 5 billion SYS. The attacker returned the funds to a Syscoin recovery address, where they were burned, and the bridge stayed paused.
- Protocol
- Syscoin
- Type
- Bridge exploit
- Reported loss
- 5 billion SYS
- Recovered
- 5 billion SYS returned and burned
Facts and where they come from
| Fact | Value | Source |
|---|---|---|
| Date | 7th of June 2026 | syscoin.org ↗ |
| Amount | 5 billion SYS | syscoin.org ↗ |
| Recovered | 5 billion SYS returned | syscoin.org ↗ |
| Status | returned and burned | syscoin.org ↗ |
Primary sources
- Syscoin: technical postmortem of the bridge incident ↗ post-mortem · accessed 2026-11-04
Our own summary of facts published by the sources above. We do not attribute fault beyond them. Amounts are as the sources state them (no USD conversion by us); links and quoted figures last checked 2026-11-04.
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