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Security Incident · Arbitrum Ecosystem

BitMart Security Incident: $391.00K Reported Loss

·Source-attributed incident record

Incident Overview

On November 2, 2026, BitMart exchange was hacked, with attackers draining approximately $391,000 from related hot wallets on Base, Arbitrum, and Optimism. Preliminary investigation suggests the attack may have been carried out by the same group that targeted Brazil’s Mercado Bitcoin on the same day. The exchange was undergoing restructuring with a severely understaffed security team.

Sources & References

Original incident referencehttps://x.com/sheldonbitmart/status/2117650361154691529 (opens in a new tab)

This record presents information attributed to the linked sources. Incident dates describe the original event, not a new report. Reported loss figures reflect the source record and are not current market valuations.

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