If your payment terminal displays the message “Tampered”, it means the device’s security system has been triggered.
Payment terminals include built-in security features designed to protect cardholder data. If the device detects that it may have been opened, damaged, or interfered with, it will automatically lock itself and display a Tampered message.
Unfortunately, a tampered terminal cannot be repaired or reset. For security reasons, it must be replaced.
What You Should Do
If you see Tampered on your terminal screen:
Stop using the terminal immediately.
Contact your main customer service team right away.
Let them know your terminal is displaying “Tampered.”
Your team will arrange for a replacement terminal to be sent as soon as possible.
Why This Happens
A terminal may display Tampered if it detects a potential security issue, such as:
The device being opened or physically altered
Internal security sensors being triggered
Physical damage to the terminal
Environmental or handling issues that activate the anti-tamper protection
These security protections are required to keep payment data safe.
Important to Know
A Tampered terminal cannot be fixed or reset
The device must be replaced
Contacting your customer service team immediately will help ensure a replacement is sent quickly
If you experience this error, your support team will help you get a new terminal up and running as soon as possible so you can continue accepting payments without disruption.