Threat Pulse 62High
Polymarket traders drained of $2M+ through a compromised third-party page script
Severity 6ResolvedconfirmedCryptoFinance

Polymarket says Thursday's outages came from a third-party provider compromise and that anyone affected will be made whole. Reports say a poisoned performance-monitoring script (DebugBear) loaded on polymarket.com hijacked logged-in sessions and dumped positions; about 995 accounts and more than $2M were hit.

What to do: Nov 2: THN: $2.7M taken in under an hour from 726 wallets via the hijacked DebugBear script; $3.9M refunded.

· 7 days ago · therecord.media
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@TheRecord_MediaverifiedOct 30, 13:01 UTC

Polymarket said outages Thursday were due to a third-party provider compromise, and said "anyone who has been impacted will be made whole"

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@SecurityWeekverifiedOct 30, 09:44 UTC

$2 Million+ Drained From Polymarket Traders in New Supply Chain Attack

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@EvanLuthraverifiedOct 29, 20:05 UTC

🚨995 Polymarket accounts just got drained through Polymarket's own website. Let me explain how, because this one should scare everyone in crypto. No fake link. No shady airdrop. These people were on the real Polymarket dot com on Thursday. Polymarket's site

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@TheHackersNewsverifiedNov 1, 07:29 UTC

🚨 $2.7 MILLION stolen from Polymarket traders in under an hour. The attackers didn't need to steal private keys. They hijacked a third-party DebugBear script and abused signed-in sessions to drain funds and trading positions. 726 wallets affected. $3.9M in r

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Plan rubric with caps (verified sweep, Oct 31)

Updated Nov 5, 01:42 UTC. Refreshes on its own.

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