ME News reports that on September 11 (UTC+8), Blockaid detected an attack on the cross-chain protocol Symbiosis on BSC. Transactions signed by BridgeV2 transferred approximately 2^62 raw syBTC (8 decimal places; valued at around $46.1 billion) to a newly created EOA; the same beneficiary sold approximately 4.39 WBTC on Ethereum’s Uni V4. To date, the attacker has cashed out approximately $336,000 worth of WBTC. (Source: Foresight News)
Symbiosis Cross-Chain Protocol Attacked on BSC; 33.6K USD WBTC Stolen
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Summary
On-chain news revealed a security breach on Symbiosis’ BSC network on September 11 (UTC+8). Attackers drained approximately 2^62 syBTC (~4.61 billion in face value) via BridgeV2 and transferred 4.39 WBTC to Ethereum’s Uni V4, netting around $336,000. The incident has prompted a protocol update to address the vulnerabilities. Blockaid and MetaEra reported the attack.
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