CTI · corroborated · 2026-08-28

Russia-Linked Cyber Espionage Clusters Use OAuth Phishing to Target U.S. and European Organizations

Full story & timeline

MITRE ATT&CK

• T1566 Phishing Initial Access
• T1528 Steal Application Access Token Credential Access
• T1621 Multi-Factor Authentication Request Generation Credential Access
• T1539 Steal Web Session Cookie Credential Access
• T1185 Browser Session Hijacking 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://cyberpress.org/russia-linked-oauth-phishing-us-europe
• https://gbhackers.com/russia-linked-oauth-phishing-clusters