Microsoft 365: The Essential Companion Guide

The Monthly Threat Report by Hornetsecurity brings you monthly insights into M365 security trends, email-based threats, and commentary on current events in the cybersecurity space. This edition of the Monthly Threat Report focuses on data and industry events from the month of January 2026.

Every business is under siege as France has experienced a series of high-impact incidents that have made headlines well beyond the security community. For IT leaders and Microsoft 365 admins, these French cyberattacks can serve as useful case studies.

The Monthly Threat Report by Hornetsecurity brings you monthly insights into M365 security trends, email-based threats, and commentary on current events in the cybersecurity space. This edition of the Monthly Threat Report focuses on data from the month of December 2025.