Verifone VX 520/SHA-2 Update Escalation Request
Due to mandatory changes by the NSA to the Secure Hash Algorithm (SHA) security standards, merchants using the Verifone VX 520 terminal must update their devices by December 28.
Cayan will be reaching out to affected merchants over the coming weeks to update these devices. However, if you would like your terminal updated sooner, you can use the form here to schedule an informational call with a Cayan representative. A Cayan representative will then contact you at the time you choose to discuss next steps.