Leaving your terminal on the factory default password creates a significant security vulnerability. Anyone with physical access to the device could alter your processing settings. Follow these steps to change your password: Access the main menu using your current password.

Contact your acquiring bank or payment gateway.

This article provides a complete breakdown of the Pax S80 default password, how to use it, what to do if it doesn’t work, and why changing it is non-negotiable for PCI compliance.

To ensure the security of your PAX S80 POS terminal:

No. While 123456 is the factory default, there is no single backdoor password that works on all units after configuration. That would be a massive security flaw.

or 8888 (Used primarily in international or legacy terminal configurations). 🛠️ How to Access the PAX S80 Main Menu