Refreshed 1h ago· updates every 6h

Syscoin Bridge (2026) — Crypto Hack

Fully Recovered
Jun 7, 2026·
Syscoin
Amount Stolen
$10.0M
~5 billion unauthorized SYS tokens minted
Recovered
$10.0M
100% of stolen funds

An attacker minted ~5 billion unauthorized SYS tokens by exploiting a parsing error in Syscoin bridge proof validation; all unauthorized SYS were returned and burned.

Summary

An attacker minted ~5 billion unauthorized SYS tokens by exploiting a parsing error in Syscoin bridge proof validation; all unauthorized SYS were returned and burned.

How It Was Compromised — Bridge Exploit via Parsing error in bridge proof validation

Bridge ExploitParsing error in bridge proof validation

On June 7, 2026, the Syscoin Bridge was exploited through a parsing error in its proof validation logic. The attacker minted approximately 5 billion unauthorized SYS tokens, resulting in approximately $10M in exposure. All unauthorized SYS tokens were subsequently returned and burned, achieving a full recovery.

Fund Flow & Laundering Analysis

No laundering activity observed. All unauthorized SYS tokens returned and burned.

Related Incidents

For educational and transparency purposes only. Not financial advice. Data compiled from public sources and may contain approximations.