Is editing and renaming a file an effective way to wipe its original data from your drive?

Valynor: > That’s what full disk encryption is for. Or encrypted containers (like with Veracrypt). As long as the file is only ever saved into the container, then the file is not recoverable without the decryption key, so it could be disposed of while keeping the rest of the drive intact. (Though some memory swap might still happen which would save an unencrypted copy to the drive?)