New 'Greatness' Phishing Platform Targets M365 Users in Browser Attacks

New 'Greatness' Phishing-as-a-Service Platform Emerges Targeting Microsoft 365 Users

• The "Greatness" Phishing-as-a-Service (PhaaS) platform is actively being offered to threat actors, providing advanced phishing kits to facilitate credential harvesting.
• This platform specifically targets Microsoft 365 users, employing sophisticated multi-stage attack flows within web browsers to trick victims into revealing their login credentials.
• Greatness PhaaS incorporates bot protection, IP address blocking, and anti-analysis measures, making it challenging for security researchers and systems to detect and mitigate its operations.

Source: SecurityAffairs | Date: January 10, 2026

References

1. SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 79 - SecurityAffairs
2. Security Affairs newsletter Round 558 by Pierluigi Paganini – INTERNATIONAL EDITION - SecurityAffairs