Polkadot warns Fearless Wallet extension users to move funds: keys exposed for 20 months

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Polkadot Community Foundation warned that accounts of users who have used the Fearless Wallet browser extension since February 2025 may have been compromised and should move their funds immediately. Affected versions are 3.0.1, 3.0.3, 3.0.4 and 3.0.5; 8 users reported unauthorized transactions totaling 17,286 DOT. The foundation recommends switching to another actively maintained wallet to generate a new keypair, and moving funds before uninstalling the extension.