Microsoft Defender for Office 365 adds advanced email and collaboration threat protection on top of Exchange Online Protection. Exact capabilities depend on plan (Plan 1/Plan 2 or bundles like Business Premium / E5 security).
What leaders should expect
- Stronger anti-phishing policies
- Safe Links / Safe Attachments style detonation and time-of-click checks (where licensed)
- Better investigation tools for email incidents (higher tiers)
Turning features on without tuning can create false positives. Plan a pilot with mail flow owners.
Want this applied in your tenant?
Book a free 15-minute review. We can walk your Microsoft 365 and identity posture and recommend a sensible next step—including ImpetraInsights™ when a formal baseline helps.