TAC: About 90% of the stolen assets have been recovered, and the cross-chain bridge will resume operation after the audit is completed

The TON Network expansion project TAC has disclosed that a security incident occurred with the TON-TAC asset bridge on May 11. Four days later, approximately 80% of the affected assets have been returned. TAC today released a post-incident analysis report detailing the events. The root cause of the vulnerability was a lack of a single verification in the sorter software: the attacker deployed a counterfeit Jetton wallet on TON, and the sorter accepted the counterfeit tokens because it did not verify the code hash of the sender's wallet. The total loss was approximately $2.86 million, involving USDT, BLUM, and tsTON. Following a public appeal, about 90% of the assets were returned to the multi-signature address controlled by TAC on May 14, with the remaining 10% retained by the attacker.

The cross-chain bridge remains paused, awaiting independent review of the repaired sorter software by the auditing party and TON partners. Cross-chain operations will resume once the verification of the repaired software is completed and the gap is filled with recovered assets and TAC Foundation token reserves. Due to the need for multi-party coordination, a precise timeline cannot be provided. The remaining funding gap will be filled by the TAC Foundation treasury, ensuring that users and protocols incur no financial losses. TAC reminds users that official updates are only published through this account and Telegram, and any unsolicited "recovery" or "support" private messages are scams.

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