CTI · reviewed · 2026-10-09

16 Malicious Firefox Extensions Impersonate Crypto Wallets to Steal Seed Phrases and Private Keys

Full story & timeline

MITRE ATT&CK

• T1176 Software Extensions Persistence
• T1056 Input Capture Collection
• T1567 Exfiltration Over Web Service Exfiltration

Indicators

No curated indicators tied to this case.

Detections

No detection content yet — case analysis did not yield signal-specific telemetry. Check back after the next daily CTI pass.

References

• https://gbhackers.com/16-malicious-firefox-extensions/
• https://thehackernews.com/2026/10/16-malicious-firefox-extensions-pose-as.html