SGC - Server Gated Cryptography

Server Gated Cryptography allows your customers with old computers and ancient browsers or operating systems to have better security when on the web.  Legacy browsers may only support 40-bit or 56-bit encryption.  Using SGC you can bump it up to 128 or even 256 bit encryption.  This is protection you can get while purchasing an SSL certificate for your website.  You can look at the statistics on your website and determine if this added protection is worthwhile based on your customer base.