Cosmos Labs disclosed an active security incident affecting chains built with its Cosmos EVM module, advising validators to stop networks and halt block production. Layer 1 project TAC confirmed hackers exploited a Cosmos EVM precompile-layer vulnerability to drain about $7.5 million from a single account and move roughly 2.986 billion TAC tokens from a custody account, with no new tokens minted and other assets unaffected. TAC paused the network at block 24,671,475, froze transactions plus deposits and withdrawals, and is working with exchanges to trace the funds. MANTRA Chain faced a similar Cosmos EVM-linked breach, while KiiChain reported repeated exploitation of the same module class. On the same day, Term Labs was hit in a separate attack that caused about $8.5 million in losses. TAC’s token later rebounded from an August 22 low but remained far below earlier highs as remediation and restart conditions stayed in focus.