Phoning home on every executable launch. Both because it's bad for privacy, and because the implementation of it is absolutely horrific such that when Apple's servers went down it basically locked up everyones computers at the same time.
Is it even really telemetry as we'd consider it? It's OCSP digital signature verification... to check if an app signature wasn't revoked. (or a website cert, or anything really)
Phoning home on every executable launch. Both because it's bad for privacy, and because the implementation of it is absolutely horrific such that when Apple's servers went down it basically locked up everyones computers at the same time.
It's on the front page still, even: https://news.ycombinator.com/item?id=25074959