Terminal shows Invalid Keys
Common causes of invalid keys displayed on a terminal, as well as troubleshooting tips to fix this issue & ensure smooth operation of your terminal.
Written by Chris Jamieson
Updated at June 24th, 2024
Seeing "Invalid Keys" on your terminal?
This article quickly covers what causes that error and the steps to troubleshoot it.
If your terminal displays the message “Invalid Keys” on screen:
- This indicates that the encryption keys for the device have been wiped.
- This is a security feature that helps keep cardholder data, and your business, safe from attackers and cyber criminals.
- The terminal has detected possible tampering, and has wiped the encryption keys in order to prevent malicious use.
- It can also be triggered when a terminal's battery drains below a safe threshold.
The Terminal can only be reset at a key injection facility.
To resolve this issue:
- Independent submerchants must contact our support team & return the terminal to CabCard.
- If you are part of a fleet, please return the terminal to your fleet manager who will be able to provide you with an alternative terminal from the buffer stock on hand.
If you have any further questions on this topic please do not hesitate to contact our support team.