How do I encrypt a file?

>>58094424
openssl or gpg now fug off

gpg -e <filename> --recipient <[email protected]>

Very carefully

Veracrypt

>>58094424
If it's just for keeping thieves out you could probably just xor them.

Check on stackoverflow theres plenty of xor code there you can just copy and paste.

>>58094424
Open it in a hex editor and manually add one to all the bytes.

>>58094553
better yet, remember the contents of the hex dump by heart, and replace each byte for some random value