Defender for Office 365 Plan 2
$5
per user / month (USD)
Add-on (included in M365 E5)
Security Add-ons
Advanced email security — auto-remediation, attack simulation & threat hunting
Browse all plans
P1 vs P2
| Feature | P1 (in E3) | P2 ($5 add-on) |
|---|---|---|
| Safe Links & Attachments | ✅ | ✅ |
| Anti-phishing policies | ✅ | ✅ |
| Automated investigation & response | ❌ | ✅ |
| Attack simulation training | ❌ | ✅ |
| Threat trackers | ❌ | ✅ |
| Advanced threat hunting | ❌ | ✅ |
💡 P2 is essential if you want to train employees with simulated phishing attacks and have the system automatically remediate threats without SOC intervention.
Frequently Asked Questions
1. Is P1 now free with E3?
Yes — from July 2026, Defender for Office 365 Plan 1 is included in M365 E3 at no extra cost. Previously it was a paid add-on.
Disclaimer
Pricing is in USD (list price, per user, per month) sourced from official Microsoft pricing pages as of April 2026 — pricing, features, and availability are subject to change. Always check the official Microsoft pricing page for the latest information, and contact your Microsoft representative for local pricing, volume discounts, and tailored offers. The views expressed on this page are personal and do not represent official positions of Microsoft.
Detailed visual feature maps by M365 Maps (Aaron Dinnage) · Built by A Guide to Cloud & AI