TREE NEWS update: Cysic Foundation said its cross-chain bridge was attacked on Oct. 17, when 10 million CYS were minted without authorization on BNB Chain, representing 1% of the token’s 1 billion supply. The attacker sold about 7.2 million CYS within roughly 28 minutes, netting about $727,000 via 306.6 ETH after bridging proceeds to Ethereum. Cysic has suspended the bridge and said the mainnet and user wallets were not directly affected.
Cysic bridge exploited; 10M CYS minted without authorization
The headline number — 1% of supply — understates the operational problem: the attacker converted most of the minted tokens into ETH within minutes, meaning the loss is now denominated in a different asset and largely outside Cysic's control. The claim that mainnet and user wallets were untouched is doing heavy lifting, since a bridge exploit that mints unbacked supply is a credibility event for the token's issuance controls regardless of where the proceeds landed. Worth watching is whether the foundation discloses how the unauthorized mint was possible and whether the suspended bridge reopens with verifiable changes.
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