I think PGP is fine for encrypting some files. But you should take into consideration that when you encrypt a file it's very likely that some (or all) of the pl

I think PGP is fine for encrypting some files. But you should take into consideration that when you encrypt a file it's very likely that some (or all) of the plain text is left behind on the block device. Using full disk encryption (LUKS for example) will give additional protection (so one can't read plain text fragments from the device when it's not "open").