Incident Overview
Polkadot issued a security alert stating that the Fearless Wallet browser extension (a third-party wallet) had been compromised since February 2025. Malicious code sent users’ private keys to an attacker-controlled server when the wallet was unlocked. Eight users have reported unauthorized transactions totaling 17,286 DOT. Affected users are urged to create new keypairs in a different wallet and move funds immediately.
Sources & References
This record presents information attributed to the linked sources. Incident dates describe the original event, not a new report. Reported loss figures reflect the source record and are not current market valuations.