CTI · corroborated · 2026-08-25

Hackers Impersonate Security Staff to Steal Credentials in ReliaQuest Social Engineering Attack

Full story & timeline

MITRE ATT&CK

• T1566 Phishing Initial Access
• T1621 Multi-Factor Authentication Request Generation Credential Access
• T1534 Internal Spearphishing Lateral Movement

Indicators

Observables tied to this case, from the curated feed. raw sidecar

• reliaquest.claims domain · revoked

Detections

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

References

• https://www.bleepingcomputer.com
• https://gbhackers.com
• https://cyberpress.org
• https://www.securityweek.com