Apple implemented a kernel API for security software and made it good enough that they forced their own tools to use the API.

I haven’t looked at the Security API in depth but I have looked at the iOS APIs… Apple gets away with their own apps having MUCH MUCH deeper access than what they give 3rd parties… I would be SHOCKED if their kernel API is all they use in their own tools.

Microsoft needs to shut up and do the work to make their kernel secure.

The EU ruling is very broad however, if it has just been security tools YES MS could have just built out the APIs and used them for defender, but the EU ruling makes it so open we have wonderful video game anti cheat and DRM drivers from all sorts of providers playing around in driver / kernel space.