# Cosmos misjudged a critical bug for four months before hackers stole nearly $6 million across six chains

https://mins.news/en/item/36128

- CryptoSlate, 2026-08-28 20:10 UTC
- Tech
- Original: https://cryptoslate.com/cosmos-misjudged-a-critical-bug-for-4-months-before-hackers-stole-nearly-6-million-across-6-chains/

> Cosmos Labs said an accounting vulnerability in Cosmos EVM was exploited across six networks, including MANTRA, TAC and KiiChain, with attackers converting about $5.72 million through decentralized and centralized exchanges. The flaw was reported in April, but engineers initially believed only six-decimal networks were affected. MANTRA disclosed an estimated $3.6 million loss.

## Related coverage

- [Cronos halts blockchain after $75mn lending exploit hits Tectonic](https://mins.news/en/item/38167) — CoinDesk, 2026-08-31
- [Cosmos Labs says it wrongly cleared bug behind $5.7 million six-chain hack](https://mins.news/en/item/37105) — The Block, 2026-08-29
