MANTRA Discloses Security Incident Post-Mortem: ~721M MANTRA Tokens Transferred, Chain Offline for 30 Hours
MANTRA has released a complete review of the August 20 security incident. The incident stemmed from an unsigned integer underflow vulnerability in the balance accounting layer of the upstream dependency, cosmos/evm. Without requiring privileged access, the attacker transferred a combined total of 720,923,967.99 MANTRA tokens from a burn address and a legacy genesis multisig address, amounting to approximately $3.6 million at pre-incident prices.