Let Vectra detect account takeovers (ATOs) for your Office 365 accounts by identifying:

• Infiltration and elevation: Brute force, adding users and privileges to groups, staging malware, etc.
• Reconnaissance: accessing files in unusual ways; listing users, files, and shares
• Persistence and evasion: installing apps to keep access, changing policy and logging, turning off DLP, etc
• Exfil and destruction: creating mail sinks, sharing and downloading files, etc.

Free service is for a 4-week period.