~snip~
That's the thing, antivirus only adds a layer of protection for the user, it's the users fault for downloading a shady app and doing dangerous things that could compromise his security. But still, antivirus would still be a great help protecting the users.
My recommended antivirus is just windows defender when you are using windows 10.
It's a free and built-in antivirus whenever you install a Windows 10 OS. And whether it is like that, nothing beats the safe browsing style and being aware of your activity on the web including surfing and downloading.
well if he uses a hard wallet, of course, the closest person can be one of the perpetrators. make sure that no one knows about it, even if your friend, because in money matters if there is an opportunity, they might take it. the problem with crypto is, when you send money, you won't be able to take it back.
How could the closest person will know your hardware wallet's detail? it's not advisable to do that if you're doing it. Anyway, OP didn't reply anymore, I guess he has found already the reason base to the posts of everyone the cause of how the hacker stole his funds.