Anybody who keeps their bitcoins on a computer where they download files is awking for trouble. Sure its ok to use it for browsing etc but you are seriously asking for trouble if you even think about downloading torrents.
There is no cure for idiocy.
People somehow blindly assume that when they use a desktop client, they can't be hacked anymore, because hey, using Bitcoin Core as the most secure client (or pretty much any other reputable desktop client) will make sure their funds are safe. It's like folks in Africa believing that if they expose themselves to certain substances, that they can't be shot or stabbed anymore. It's so retarded, that you can't even think of a way to help them other than having them get rekt/hurt first.
The deeper we dig into mainstream adoption, the worse the people entering crypto become, and we have seen that in 2017/2018 already.
This is why banks and payment services such as PayPal will always have a dominant position in the world economy. People can't take care of their own finances. They need a central party to do it for them, and that can reverse transactions in case of malicious activity.