And yet. . . Windows Defender comes from the company that Gates built - the MSDNC. That’s kind of scary right there. Course the joke always was that these companies had one group dedicated to creating the viruses and another to remediating them.
I think I started that joke. Used to catch virus in the wild, isolate it to floppy and reverse engineer it to find the cure and what it did, this was back in the dialup days, I still have some of those floppys.