There is no such thing as a secure computer. You can bury it in cement and drop it in the deepest hole in the ocean. If someone needs access to it bad enough, they will get in.
My SO says the same thing. (He’s an electronics engineer who writes the software buried inside devices.) “For every can there is a can opener.” He also rants about different attacks, the worst one apparently being a “rubber hose attack”. (I think he means people getting tortured to open up whatever it is.)
I use this program called “qBittorrent” to get music. Then when I find stuff I like, I find other means to get money to the makers of it (like merch or the like).
If I could actually put money into Bandcamp I’d go with that one for actually getting money to them, but they don’t accept any currency or payment scheme I can offer.