MANTRA Chain Avoids Recovery Plan in New $3.6M Incident Report
TL;DR
- MANTRA Chain has disclosed new details about its August exploit, which moved 720.9 million MANTRA worth about $3.6 million.
- The attack exploited an upstream Cosmos-EVM vulnerability without compromising validator keys or customer balances.
- The chain has since been patched and restored, but MANTRA has not committed to a definitive recovery plan.
MANTRA Chain has released a detailed post-mortem of its August 20 security incident, confirming that an attacker transferred approximately 720.9 million MANTRA, valued at about $3.6 million. The report attributes the breach to an unsigned-integer underflow in the upstream cosmos/evm module rather than code written directly by MANTRA.
The incident did not involve compromised validator keys, governance controls, administrator credentials or multisig signers. MANTRA confirmed that no customer funds were directly debited. However, the event increased circulating supply because the attacker moved tokens previously considered economically inactive.
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