Super Code encrypts and secures E-mail and PC files using an encryption management facility. Security Folder AUTOMATICALLY encrypts PC files at close-down and decrypts at start-up, safeguarding PC folders even if a PC is stolen. Time-stamped log facility records the history of encryption-decryption operations. Password Directory aids the tracking of numerous E-mail passwords. Multiple system IDs offer separate privacy to each shared user of a PC. Self-Extracting E-mail attachment can be prepared and sent to anyone who has a private password to decrypt.