I have received email notifications from Cybersource saying in order to enhance security between server to server communication. They will move away from SHA-1 to SHA-2, does anyone know what I have to do for this upgrade?
That's more than a bit concerning that they are just not moving from SHA-1. That should have been done over a year ago. Which extension are you using? I would contact the vendor and ask them if there is an update for their extension. Can you give more details about the email they sent?