Microsoft Defender for Identity is a commercial identity threat detection and response solution by Microsoft. Proofpoint Identity Threat Defense is a commercial identity threat detection and response solution by Proofpoint. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about each one.
Best for: Microsoft shops with on-premises Active Directory
It leads this list because most companies still run on-premises Active Directory, and this product watches it from the inside while feeding the same Defender incidents your analysts already work. If you are a Microsoft shop, it is often the shortest path to identity detection. If your endpoint and SOC stack is not Microsoft, weigh how much of that value carries over.
From Best ITDR Solutions for Business, Fall 2026
Best for: Companies wanting to find and close attack paths
Proofpoint earns its spot for teams that want to shrink the attack surface first, because it shows the shortest routes to your critical assets and helps close them. Its decoys need no agents, which keeps rollout light. It is built for mid-size and large Microsoft estates, so check coverage if you also run another identity provider.
From Best ITDR Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
Identity threat detection and response solution for Active Directory
Identity threat detection and response solution for account protection
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
Microsoft Defender for Identity fits if you need both cloud and on-premises options and you are a small business.
Proofpoint Identity Threat Defense fits if you want a cloud product.
Common questions when comparing Microsoft Defender for Identity vs Proofpoint Identity Threat Defense for identity threat detection and response.
Microsoft Defender for Identity: Identity threat detection and response solution for Active Directory. Built by Microsoft.
Proofpoint Identity Threat Defense: Identity threat detection and response solution for account protection. Built by Proofpoint.
The table above shows where their features, integrations, deployment and company size fit differ.
Microsoft Defender for Identity is made by Microsoft. Proofpoint Identity Threat Defense is made by Proofpoint. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Microsoft Defender for Identity and Proofpoint Identity Threat Defense are both Identity Threat Detection and Response products. Use the table above to see where features, deployment and company size fit differ.
Need the answer fast? Best ITDR Solutions for Business picks Microsoft Defender for Identity, CrowdStrike Falcon Next-Gen Identity Security, SentinelOne Singularity Identity Security and 4 more.See the shortlist