I have some sensitive data (about 3 Megabytes) on a computer running Windows that I want to backup regularly to a different computer. The computer with the data on it will be used by someone else, the backup process should therefore be as simple as possible, a one-click solution would be nice.
My idea now is to just encrypt the files and send an email to a mail-account set up for that purpose.
How could I encrypt the files, with which program? And how can I send the encrypted files via mail automatically?