My friend had experienced a malware attack that changed his bitcoin wallet address to someone else's bitcoin address that a hacker had implanted.
At first, he didn't notice until he transacted and saw that his bitcoin wallet address was different from the one he copied and pasted and then reinstalled the system into a new one.
Scams from HYIP programs always target new people who don't have enough knowledge. I experienced it several years ago when I was new to the world of the internet and crypto.
But my friends also managed to get big returns from HYIP sites because the owner wrote the wrong reward that my friend should get and made my friend immediately withdraw all his balance.