Polymarket confirms $3M theft from users via third-party vendor compromise
Polymarket confirmed that approximately $3M was stolen from users following a compromise of a third-party vendor. The platform pledged full reimbursement to affected users; vendor identity, full victim scope, fund recovery, and threat-actor attribution remain unconfirmed. No insured loss estimates or cross-entity aggregation have been reported. Lifecycle has moved to monitoring.
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Impact verdict
Low impact. Confirmed loss is approximately $3M from users of a single crypto-based prediction market platform via third-party vendor compromise. The figure is well below thresholds typically associated with material London Market cyber book impact. No evidence of systemic platform failure, insured commercial loss, reserving action, or aggregation across multiple insured entities has emerged. Affected users are predominantly retail/international; vendor identity, full victim scope, and fund recovery remain unconfirmed.
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