Forestall ISPM & IVIP is a commercial identity threat detection and response solution by Forestall. Microsoft Defender for Identity is a commercial identity threat detection and response solution by Microsoft. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
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
Reviewed by Nika (Nikoloz) Kokhreidze.
Agentless ISPM platform for identity risk visibility, attack paths & compliance.
Identity threat detection and response solution for Active Directory
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Based on what each listing shows: deployment, company size, price and open source.
Forestall ISPM & IVIP fits if you want a cloud product.
Microsoft Defender for Identity fits if you need both cloud and on-premises options.
Common questions when comparing Forestall ISPM & IVIP vs Microsoft Defender for Identity for identity threat detection and response.
Forestall ISPM & IVIP: Agentless ISPM platform for identity risk visibility, attack paths & compliance, built by Forestall.
Microsoft Defender for Identity: Identity threat detection and response solution for Active Directory, built by Microsoft.
The table above shows where their features, integrations, deployment and company size fit differ.
Forestall ISPM & IVIP is made by Forestall. Microsoft Defender for Identity is made by Microsoft. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Forestall ISPM & IVIP and Microsoft Defender for Identity are both Identity Threat Detection and Response products, and both cover Active Directory. 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