BitMart founder Sheldon Xia said the exchange suffered a hacker attack on Nov. 3 and that investigators are examining whether the same organization targeted Brazil’s Mercado Bitcoin, according to BlockBeats.
Exchange response
Xia said the amount involved in BitMart’s incident was relatively small. The team began an investigation and strengthened security defenses, while preliminary findings pointed to a possible link with the Mercado Bitcoin attack.
Operational context
BlockBeats described BitMart as having announced a shutdown and moving through restructuring and liquidation. The reported attacker link remains preliminary and was not presented as a confirmed attribution.
Source: BlockBeats English report, published Nov. 4, 2026.