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Tuesday, August 10, 2021 at 10:00 UTC

Poly Network

Cross-chain manager keeper hijacked; whitehat returned all.

Recovered
Funds stolen
$611.00M
Recovered
$611.00M100%
Still outstanding
$0.00M
Chain
Ethereum
Category
Bridge
Attack vector
Bridge Exploit
Reported by
CertiK
Incident ID
h2021-2

Exploit & recovery timeline

  1. Aug 10, 2021 · 08:00 UTC
    Attack preparation

    Attacker wallets funded and staged ahead of the bridge exploit exploit against Poly Network.

  2. Aug 10, 2021 · 10:00 UTC
    Exploit executed

    $611.0M drained from Poly Network on Ethereum via Bridge Exploit.

  3. Aug 10, 2021 · 11:00 UTC
    Detected by CertiK

    CertiK flagged the anomalous transactions and published an initial alert.

  4. Aug 10, 2021 · 14:00 UTC
    Protocol response

    Poly Network paused affected contracts or withdrawals and began tracing outbound flows.

  5. Aug 11, 2021 · 10:00 UTC
    Funds traced

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

  6. Aug 17, 2021 · 10:00 UTC
    Full recovery

    $611.0M returned to users — negotiation, freezes, or a whitehat return closed the incident.