TAC blockchain remains halted as 1.26 billion-token bailout is proposed

TAC's blockchain remains halted at block 24,671,475 after an exploit emptied its bonded staking pool. An RPC query at 2:33 a.m. UTC showed that the final block was from Aug. 22. TAC's Sept. 1 postmortem put the drain at 2,985,651,403.40 TAC, or 28.6% of supply. TAC said one transaction reduced the bonded pool to zero without changing total token supply. The upstream Cosmos EVM advisory attributed the attack path to a mismatch between spendable and locked token records. Cosmos Labs said a second overflow operation let an attacker zero a victim account while retaining its legitimate tokens. TAC identified its protocol-controlled staking pool as the victim account. The advisory classified the flaw as critical. Cosmos EVM versions below 0.6.2 and versions 0.7.0 and 0.7.1 were vulnerable. TAC said the attacker sold 1,208,329,197 TAC on BNB Chain for 950,293 USDT. The attacker sold another 49.9 million TAC on TON for 55,481 USDT. The reported proceeds totaled 1,005,774 USDT. TAC proposed a targeted state edit for 65,100,989 incident-linked TAC frozen on its network. Another 1,662,322,353 TAC remains in incident-associated BNB Chain addresses. TAC proposed replacing 1,258,228,061.40 TAC sold from the pool from foundation treasury reserves. The proposed edit would correct specified balances at the halt block without rewinding the chain. TAC said the edit would restore the bonded pool and delegator balances while preserving 7,772 legitimate transactions from 218 unrelated addresses. Validators must adopt TAC's patched binary, resume block production and execute the edit before the halt can end. Bridging and redemption remain disabled. TAC has not settled how the 1.662 billion TAC on BNB Chain will be treated. The treasury commitment addresses the sold-token shortfall, not the larger attacker-held balance outside the network.