Polymarket halts trading after $2.7M drained via compromised third-party script

cyb3rops · x · 2026-10-30

Polymarket confirmed a security incident on its international platform: a third-party provider was compromised, prompting a temporary trading halt, a referral to law enforcement, and a commitment to make impacted users whole.

The poster says roughly $2.7M was drained, tracing it to debugbear, a third-party script the site used for website speed analysis. The takeaway: the bigger risk isn't single CVEs but chaining vulnerabilities across the supply chain — and as attackers scale with AI agents, the moat shifts to the agent framework and its scannable attack surface.

Related event: Polymarket Hit by Supply Chain Attack via DebugBear Script, Over $2.5M Stolen(6 posts)→

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