!!! Overview [{$pagename}] ([PCT]) was a [protocol] developed by [Microsoft] in the mid-[1990s] but has since been superseded by [SSLv3] and [Transport Layer Security]. [{$pagename}] was designed to address security [Vulnerability] in version 2.0 of Netscape's [Secure Socket Layer] ([SSLv2]) [protocol] and to force [Netscape] to hand control of the then-proprietary [SSL] [protocol] to an open standards body. PCT was designed to address security flaws in version 2.0 of [Netscape]'s [Secure Sockets Layer|SSL] [protocol] and supports most of the [Cipher Suites] supported by [SSLv2]. Some say this was done to force [Netscape] to hand control of the then-proprietary [SSL] protocol to an open [standards] body. [Schannel SSP] supports PCT 1.0 for backward compatibility only. %%warning Private Communications Technology it [SHOULD NOT] be used for new development. %% !! More Information There might be more information for this subject on one of the following: [{ReferringPagesPlugin before='*' after='\n' }] ---- * [#1] - [Private_Communications_Technology|Wikipedia:Private_Communications_Technology|target='_blank'] - based on information obtained 2020-09-15