Over 40 Malicious Firefox Extensions Target Cryptocurrency Wallets, Stealing User Assets

GIT USA EUROPE SEVERITY-MEDIUM INCIDENT-OTHER YEAR-2025
0 points

Summary

undefinedSecurity-related activity has been reported. Severity level: medium.

Cybersecurity researchers have uncovered over 40 malicious browser extensions for Mozilla Firefox that are designed to steal cryptocurrency wallet secrets, putting users' digital assets at risk.
"These extensions impersonate legitimate wallet tools from widely-used platforms such as Coinbase, MetaMask, Trust Wallet, Phantom, Exodus, OKX, Keplr, MyMonero, Bitget, Leap, Ethereum Wallet, and Filfox

Recommendations

â„šī¸ PROACTIVE MEASURES RECOMMENDED:
1. Review your security posture
2. Ensure patches are up to date
3. Monitor for related threats
4. Review security awareness training
5. Update threat intelligence feeds

Additional recommendations based on incident type:
1. Review current security posture
2. Monitor for similar threats
3. Update security policies as needed

Source: The Hacker News

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