Mercado Bitcoin hacker moves $8m in ETH and still holds $46m in crypto

The story so far: Mercado Bitcoin security incident

Brazilian exchange Mercado Bitcoin confirmed a security incident and paused deposits and withdrawals, saying customer assets were unaffected. Tether and Circle froze part of the funds. The hacker has now moved $8m in ETH to a new wallet, possibly toward Tornado Cash, and still holds $46m in crypto.

1. 2 Nov 202613:49 UTC

   Mercado Bitcoin confirms security incident and pauses deposits and withdrawals

   Brazilian crypto exchange Mercado Bitcoin confirmed a security incident and temporarily suspended deposits and withdrawals, saying customer assets were unaffected. Hypernative had flagged suspicious transfers of more than $40m across several blockchains, which local media linked to the incident.

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2. 2 Nov 202615:10 UTC

   Tether freezes over 4.5m USDT linked to Mercado Bitcoin security incident

   Tether CEO Paolo Ardoino says Tether has frozen more than 4.5m USDT tied to a security incident at Mercado Bitcoin. The exchange said no customers lost funds and no data leaked, and paused deposits and withdrawals as a precaution.

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3. 2 Nov 202615:47 UTC

   Mercado Bitcoin publishes addresses tied to security incident

   Brazilian exchange Mercado Bitcoin published destination addresses linked to the incident across the EVM, BTC, SOL, XLM and TRON networks, saying they are for identification and tracking only. It has not disclosed the scale of assets involved or a timeline for restoring services.

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4. 2 Nov 202616:45 UTC

   Mercado Bitcoin says customer funds unaffected after alleged hack

   Onchain Lens says a hacker holds $46.5m in crypto across 46 addresses after an alleged attack on Mercado Bitcoin, including 3,680 ETH, 106 BTC and $8m in stablecoins. Mercado Bitcoin says customer funds and data were not affected.

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5. 2 Nov 202616:57 UTC

   Mercado Bitcoin says it will bear $40m loss from hack

   Brazilian exchange Mercado Bitcoin says it will itself bear the $40m loss caused by a hack and that customers are not expected to lose funds. Onchain Lens says an Arkham-tagged Mercado Bitcoin hacker entity holds about $46.5m in crypto across 46 addresses.

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6. 2 Nov 202619:23 UTC

   Mercado Bitcoin says over $46m moved from its wallets in security incident

   Brazil's Mercado Bitcoin said a security incident led to more than $46m in crypto being moved from its wallets, and funds kept moving from linked addresses after it paused deposits and withdrawals. Tether and Circle had frozen about $6.2m of the funds by 16:42 UTC; a spokesperson said customers suffered no losses and no data leaked.

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7. 2 Nov 202619:42 UTC

   Onchain Lens says $5.55m tied to Mercado Bitcoin hack is frozen

   Onchain Lens says about $5.55m linked to the hack of Brazilian exchange Mercado Bitcoin has been frozen across three addresses, including USDT, USDC and gold-backed tokens.

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8. 2 Nov 202623:21 UTC

   Mercado Bitcoin says it has frozen $11m in stolen assets

   Mercado Bitcoin says about $38m is involved in a security incident and that it has worked with Tether, Circle, Paxos, BRL1 and Chainalysis to freeze $11m, with more freezable funds identified. The exchange says users will not lose assets.

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9. 3 Nov 202600:49 UTC

   Synthetix governance moves 428,000 SNX stolen in Mercado Bitcoin hack to DAO address

   Synthetix governance has moved 428,000 SNX, worth about $76,000, stolen in the Mercado Bitcoin hack from the attacker's wallet to the Synthetix Protocol DAO address.

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10. 3 Nov 202601:36 UTC

    Mercado Bitcoin hackers still hold over $9.2m in altcoins, Lookonchain says

    Lookonchain says hackers who attacked Mercado Bitcoin, causing losses of more than $46m, still hold over $9m in altcoins including PEPE, AAVE, PENDLE, EVA, VIRTUAL, UNI and ONDO, which may face selling pressure. More than $9m of the stolen assets has been frozen.

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11. 3 Nov 202606:28 UTC

    Mercado Bitcoin hacker moves $8m in ETH and still holds $46m in crypto

    A hacker linked to Mercado Bitcoin moved $8m worth of ETH to a new wallet and may be preparing to deposit it into Tornado Cash, on-chain monitoring shows. The hacker holds $46m in crypto assets.

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