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Tuesday, November 26, 2019 at 03:00 UTC

Upbit

342k ETH moved from hot wallet.

Lost
Funds stolen
$49.00M
Recovered
$0.00M0%
Still outstanding
$49.00M
Chain
Ethereum
Category
CEX
Attack vector
Private Key Compromise
Reported by
SlowMist
Incident ID
h2019-3

Exploit & recovery timeline

  1. Nov 26, 2019 · 01:00 UTC
    Attack preparation

    Attacker wallets funded and staged ahead of the private key compromise exploit against Upbit.

  2. Nov 26, 2019 · 03:00 UTC
    Exploit executed

    $49.0M drained from Upbit on Ethereum via Private Key Compromise.

  3. Nov 26, 2019 · 04:00 UTC
    Detected by SlowMist

    SlowMist flagged the anomalous transactions and published an initial alert.

  4. Nov 26, 2019 · 07:00 UTC
    Protocol response

    Upbit paused affected contracts or withdrawals and began tracing outbound flows.

  5. Nov 27, 2019 · 03:00 UTC
    Funds traced

    Stolen assets followed through mixers, bridges, and exchange deposit addresses.

  6. Dec 26, 2019 · 03:00 UTC
    Funds written off

    No assets recovered; losses absorbed by the protocol, insurers, or users.