Linux didn't really have software that "phoned home" in the past. Most of the software was open source, so you could literally look inside it to see if it would

Linux didn't really have software that "phoned home" in the past. Most of the software was open source, so you could literally look inside it to see if it would ever "phone home". But now proprietary software for Linux is getting more popular, and I guess this makes people paranoid.