The whole point of hacking a computer is to gain access to someone’s machine that doesn’t want you to have access. Stuff like saved financial data on Excel spreadsheets, things like that.
I don’t know about you, but should someone hack my computer and put kiddie porn on it, I’d rather the FBI track down the person that hacked me, over putting me in jail for 10 years, making me register as a sex offender, and destroying my life because I was a victim of a computer hack, and the hacker just happened to put kiddie porn on my hard drive.
However, there are several safety guards that common individuals can partake of.
I use Ubuntu on my home computer with other security measures.
My laptop has US gummit grade Norton on it.
I know that this doesn't preclude a dark possibility, however, it does greatly reduce the likely-hood.
But, I doubt the individual that had the friend put porn on his computer really qualifies as “having taken measures” to minimize these possibilities.
It isn’t just hacking. These animals are very good at tricking people in. remember whitehouse.com and what happened with that.
type christian into a search and see what you get. You’ll likely get a really shock.