CTI · corroborated · 2026-09-28

Microsoft Entra TrustSink Attack Uses Rogue MFA Provider to Steal Passwords

Full story & timeline

MITRE ATT&CK

• T1556 Modify Authentication Process Defense Impairment
• T1484 Domain or Tenant Policy Modification Defense Impairment
• T1056 Input Capture Collection

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/microsoft-entra-trustsink/
• https://baurnewmedia.de/trustsink-wie-ein-manipulierter-mfa-anbieter-passwoerter-stiehlt-und-warum-passwort-resets-nicht-reichen/1733/
• https://winfuture.de/news,161471.html