SSL (Secure Sockets Layer)

A protocol designed by Netscape Communications Corporation to provide encrypted communications on the Internet. SSL (Secure Sockets Layer) is layered beneath application protocols such as HTTP, SMTP, Telnet, and FTP and is layered above the TCP/IP connection protocol .

SSL uses the HTTPS access method usually at 128-bit encryption (also known as cipher strength).  HTTPS is a secure protocol that is simply SSL underneath HTTP.  SSL web pages use "https://" in the address (URL) instead of "http://".

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