Secure Encryption We use Secure Socket Layer (SSL) technology, which is supported by the vast majority of modern Internet browsers. SSL works best when you are using the latest 128-bit encryption version of Microsoft Internet Explorer. SSL technology represents the highest level of security available on the Internet. It automatically encrypts information traveling over the Internet, verifies the identity of the transacting servers through certificates and digital signatures, and confirms that the integrity of message content is maintained throughout transmission. A&A Midwest minimum requirement for transactions is the standard 40-bit or 56-bit encryption supported by the Internet Explorer 5.0 browser. If you are not using this browser, please refer to your browser's documentation for information on its security features. We transmit the entire credit card number to the appropriate credit card company during order processing, but we reveal only the last five digits of your credit card numbers when confirming an order in compliance with Payment Card Industry Data Security Standard.