Cryptography isn't really an option!

• Cryptographically enhanced systems offer the protection you need now, to protect your systems, your users and their data.

• Important first steps:

• • Use SSH exclusively for system administration.
  • Use SCP/SFTP for all file transfers not wrapped in SSL or done anonymously.
  • Install POP3/IMAP and SMTP servers with TLS support.
  • Use SSL/HTTPS for applications involving passwords or proprietary data (like webmail applications).