Encryption and Data Storage...
Once on Sage Pay's systems, all sensitive data is secured using the same internationally recognised 256-bit encryption standards used by, among others, the US Government. The encryption keys are held on state-of-the-art, tamper proof systems in the same family as those used to secure VeriSign's Global Root certificate, making them all but impossible to extract.
System security...
Sage Pay’s systems are scanned quarterly by Trustwave which are an independent Qualified Security Assessor (QSA) and an Approved Scanning Vendor (ASV) for the payment card brands.
Sage pay is also audited annually under the Payment Card Industry Data Security Standards (PCI DSS) and is a fully approved Level 1 payment services provider, which is the highest level of compliance. They are also active members of the PCI Security Standards Council (SSC) that defines card industry global regulation.