Polymarket to Refund Users After Hackers Steal $3M in Frontend Attack
Jun 26, 2026
< 1 min read
by Wayne Jones
for CryptoPotato

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AI Overview
Polymarket confirmed a security breach after a compromised third-party vendor allowed attackers to inject malicious code into its frontend, draining about $3 million from fewer than 15 user accounts. The platform says it will fully refund affected users, but the supply-chain frontend exploit highlights crypto and DeFi security risks and may hurt user trust and adoption.
Bearish
Polymarket confirmed Friday that a compromised third-party vendor allowed attackers to inject malicious code into its frontend, draining about $3 million from fewer than 15 user accounts.
The platform says it will fully refund all affected users.
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