A Polymarket-linked community account said the prediction platform successfully contained a security breach after discovering a third-party vendor had been compromised on Thursday, June 25, morning.

Hackers drained roughly three million dollars from Polymarket users after a compromised vendor injected malicious code into the platform's website.

Hackers infiltrated Polymarket’s website via a compromised third-party vendor, the company said, swiping millions in crypto from users.