[latexr]

Ask any domestic abuser. Most of them seem to be successful at it.

https://www.npr.org/sections/alltechconsidered/2014/09/15/34...

It’s crazy to me that people are being so skeptical of the idea. A lot of people share their logins freely with their spouses. I have never done it nor would I condone it, but it would be trivial for me to install spyware on the devices of many people I know, because they rightfully trust me. Not only do I know some of their device passwords¹, being “the computer guy” I could just outright ask for it or get them to input it anywhere while fixing some issue they have.

¹ And many more I have forgotten, because I make it a point to not record them, even mentally.

[echoangle]

If you can get the app onto my phone in person, you can also just check which apps I have on my phone

[latexr]

That assumes continued access, which may not be true. Installing spyware gives you information down the line.

[maccard]

But if you have credentials and physical access you can just ask for their phone and straight up read their messages/apps.

[latexr]

Yeah, once, possibly under time pressure, and not at all times. Spyware gives you continued access.