Most organizations license Microsoft E3 or E5, buy CrowdStrike and Mimecast on top, and never bother to see what overlaps. This tool runs that comparison. No tenant access. No Microsoft Graph permissions. No bullshit.
Microsoft makes money because their bundle is deliberately opaque. Nobody in your org actually compared capability lists. The vendor's SE said “we're complementary to Defender,” you nodded, and procurement signed. This has been going on for years.
Your security team calls it defense in depth. Your finance team calls it “that $340k line item nobody can explain.” Both are right. Only one of them is going to bring it up at the next QBR.
M365 Business Basic, Standard, Premium. E1, E3, E5. Select whatever licensing decision you made in 2019 that nobody wants to revisit.
CrowdStrike, SentinelOne, Mimecast, KnowBe4, Proofpoint, Cisco Duo, Palo Alto. Select everything that survived your vendor cull last year.
Capability overlap by domain. Venn diagram. Per-vendor breakdown. Cost calculator. Everything you need for a very uncomfortable renewal conversation.
This tool won't tell you to dump CrowdStrike. It won't tell you Defender is good enough. Those are judgement calls that depend on your threat model, your team's expertise, and how much you trust Microsoft at 3am.
What it will tell you: where the overlap is, how significant it is, and what that redundancy costs you per seat. You take it from there. Or you don't. Either way — now you know.