Mercado Bitcoin confirmed overnight on Nov 2 that it identified and quickly contained a security incident in one of its systems, in its official statement.

Mercado Bitcoin confirmed overnight on Nov 2 that it identified and quickly contained a security incident in one of its systems, in its official statement.

It said there was no loss to clients and no data leak, but deposits and withdrawals are temporarily suspended as a preventive measure while teams investigate, track assets and coordinate with authorities.

Wu Blockchain reported preliminary analysis by Hypernative of over $40 million in suspicious transfers across at least 10 blockchains, including Bitcoin, Ethereum, Solana and Tron.

That $40M figure is Hypernative's estimate only, it has not been confirmed by the exchange, and the attack method remains unknown.