Polymarket suspends trading after third-party data provider hack, with reports of user funds stolen

Polymarket has halted trading after a breach at a third-party data provider. Reports say some user funds were stolen by hackers, which is the part PSPs and platform operators care about most: when a dependency gets hit, the payment and settlement layer tends to inherit the mess.

1. Polymarket suspended trading after the incident involving a third-party data provider. The source does not name the provider, but the trigger is clear enough: the platform’s operations were interrupted because an external data link was compromised.
2. According to reports, hackers stole part of Polymarket users’ funds. For high-risk payment teams, that immediately turns this from an IT issue into a controls issue, because the question becomes whether customer balances, payouts, or related flows were exposed.
3. No further technical details, amount, or jurisdiction were provided in the source text. So the only safe read is the operational one: a vendor-side breach forced Polymarket to stop trading while the platform assessed the impact.