Maybe I’m just risk averse here. I assume most of big tech with more legal weight than they know what to do with have about a 50/50 chance of having someone upstairs greenlighting legal to throw a tantrum even if it’s not in anyone’s best interests.
Maybe if this firm demonstrated an exploit of CORS headers elsewhere open to *.microsoft.com or something, they’d be on worse footing legally.
Especially now that this has been on Hacker News, I don't think even Microsoft is stupid enough to go on the offensive over something like this. The bad press would be so much greater than anything they have to gain.
Then you should still check to make sure the issue isn't there.
Well, previously I'd never heard of Truffle Security, but now I have. So ... maybe?
Microsoft has Safe Harbor.