[cookiengineer]

Back in the days people called skype [1] spyware because it had lots of backdoors in it and lots of undocumented APIs that shouldn't have been in there.

The funny part was that skype was probably the most obfuscated binary that was ever available as "legitimate" software, so there were regular reversing events to see "how far" you could get from scratch to zeroday within 48h hackathons. Those were fun times :D

[1] Skype, pre Microsoft rebrand of Lync as Skype