All transaction information passed between Guy's Magnets Ltd T/A MapsWorldwide and Sage Pay’s systems is encrypted using 128-bit SSL certificates. No cardholder information is ever passed un-encrypted and any messages sent to our servers from Sage Pay are signed using MD5 hashing to prevent tampering. You can be completely assured that nothing we pass to Sage Pay’s servers can be examined, used or modified by any third parties attempting to gain access to sensitive information.