Discover Card uses 128-bit Secure Socket Layer (SSL), the highest encryption standard, to encode your personal information being sent over the Internet. When you enter personal information at Discovercard.com, it gets scrambled before it is sent to us. Then, when we receive the information, it is unscrambled. SSL protects your information, making it virtually impossible for someone else to access it. To take advantage of SSL, we recommend that you use an SSL-compatible browser: Windows Firefox 3.0 or newer (Firefox 3.6 recommended) Microsoft Internet Explorer 6.00 or newer (Internet Explorer 8 recommended) Macintosh Firefox 3.0 or newer (Firefox 3.6 recommended) Safari 4.0 or newer (Safari 5.3x recommended)