CTI · corroborated · 2026-09-20

BragJack attacks hijack AI browser agents through malicious extensions

Full story & timeline

MITRE ATT&CK

• T1176 Software Extensions Persistence
• T1059 Command and Scripting Interpreter Execution
• T1005 Data from Local System Collection
• T1113 Screen 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://forever.security