What does it mean if my terminal is tampered?

Your device may be compromised

If you see the tamper message, stop using the device, and contact Adyen immediately.

If the terminal detects a possible security breach, it’ll display a “tamper” or “tampered” message. If you see the tamper message, stop using the device, and contact Adyen immediately. The terminal will have to be replaced. 

Tip: Order or return a terminal.