PANews|5月 21, 2026 00:08
[TAC: Approximately 90% of Stolen Assets Recovered, Cross-Chain Bridge to Resume After Audit Completion]
The TON network expansion project TAC disclosed in a statement that a security incident occurred on May 11 involving the TON-TAC asset bridge. Four days later, approximately 80% of the affected assets were returned. Today, TAC released a post-incident analysis report detailing the events.
The root cause of the vulnerability was a missing verification in the sequencer software: the attacker deployed a forged Jetton wallet on TON, and the sequencer accepted the counterfeit tokens due to the lack of verification of the sender wallet's code hash. The total loss amounted to approximately $2.86 million, involving USDT, BLUM, and tsTON.
Following a public appeal, about 90% of the assets were returned to a multi-signature address controlled by TAC on May 14, while the remaining 10% is retained by the attacker. The cross-chain bridge remains suspended, pending an independent review of the patched sequencer software by the auditing party and TON partners.
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