I don't send stuff that is sensitive, anyway. But, if I need to, I find a safe way to convey a key(s) to the recipient, encrypt stuff with Veracrypt, then send the encrypted file through open channels.

Veracrypt is open source so there's no backdoor issues with it. (I don't trust anything unless it's open source.) I don't lock my hard drives but I do lock files using a three layer scramble. Brute force decryption would take eons to crack it. (Not sure about quantum computing doing a gazillion things in half a nanosecond.)

Of course, there are tons of ways to get sensitive stuff without cracking Veracrypt. But that's not the point.