iPhone Spyware called "Hide UI" used by law enforcement, can track a suspect's passcode when it's entered into a phone. In order for this feature to work, law enforcement officials must install the covert software and then set up a scenario to put a seized device back into the hands of the suspect

https://www.nbcnews.com/tech/security/iphone-spyware-lets-cops-log-suspects-passcodes-when-cracking-doesn-n1209296

HP (once a great company, now,) Installs Telemetry software without the user permission and sends data back once a day.

And, HP customers also complained that the installation slowed down their system significantly.


Another user owning an HP laptop head on to Reddit and said:

"So today all of a sudden, I'm experiencing a considerable slowdown in my laptop (Pavilion P3V59PA). Once I look for the problem in Task Manager, I found out that the program called HP Touchpoint Analytics Client (and it's subsequent follow up) constantly jumping the memory usage (~300Mb at a minimum, ~nearly 2Mb at maximum)."

 "I don't remember ever installing this program whatsoever, and in control panel, I found that for some reason this program was silently installed today, without my consent

For More:
https://thehackernews.com/2017/11/hp-computers-telemetry-data.html