A
Web server that supports any of the major security protocols, like
SSL, that
encrypt and
decrypt messages to protect them against third party tampering. Making purchases from a secure Web server ensures that a user's payment or personal information can be translated into a secret code that's difficult to crack. Major security protocols include SSL,
SHTTP, PCT, and
IPSec.
See the Server Types page in the Quick Reference section of Webopedia for a comparison of server types.