Seeds are safe when you keep them offline that's why I prefer storing mine in papers and lock them away until I need them, storing on mobile phones and windows PC is very dangerous. I am not storing them on a PC which I use to access the wallets when I need to access the wallet I just copy them directly to the access area.
Yes, it is very dangerous when we save the seed on a personal computer. We don't know when there will be hacks like the ransomware case a few years ago. I myself also prefer to keep it all in a safe place where no one knows.