Look for a support sticker on the bottom or side of your PAX S80 terminal. This contains the helpline for your specific merchant acquirer.

Rotate your terminal passwords every 90 days. Avoid predictable sequences like 1111 or 1234 .

The date-based default password mechanism is well-documented in user manuals and support resources. Anyone with basic knowledge of PAX terminals can access an unsecured terminal by simply entering the current date.

When dealing with default passwords and device resets, it's essential to keep the following tips in mind:

The default password for a terminal is most commonly the current date in MMDDYYYY format . For example, if today is April 21, 2026, you would enter 04212026 . Common Default Passwords

In the world of payment terminals, the PAX S80 is a familiar workhorse. For years, this countertop model has processed billions of transactions in retail stores, restaurants, and hotels worldwide. But beneath its mundane, beige exterior lies a critical point of vulnerability that often goes overlooked: the .

The most frequently encountered password on the PAX S80 is the user password, which defaults to the current date in MMDDYYYY format. For instance, if today is June 5, 2026, the default password would be 06052026 . This password changes daily, resetting each day to the new date.

The merchant password, also known as the user password, is required for daily operations including transaction processing, batch management, and basic reporting. This password can be customized and changed by the merchant according to business needs.