WSJ Markets20/09/2026 09:00:00

Polymarket’s Rush to Grow Left a Door Wide Open For Fraudsters

CEO Shayne Coplan brushed off concerns about a scheme involving stolen debit cards. Now the prediction market is bolstering its executive ranks as it eyes an IPO.

By Caitlin Ostroff, Katherine Long, Neil Mehta
17 hours ago
Polymarket’s Rush to Grow Left a Door Wide Open For Fraudsters
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