Tamper-Evident Labels for Payment Terminals & POS Devices

Retailers and other businesses that accept card payments have to periodically inspect their card readers and payment terminals for signs of tampering or unauthorized swapping — it's one of the standard security requirements built into the rules that govern how card payments are handled.

General information, not legal advice — confirm current requirements with your acquiring bank, payment processor, or Qualified Security Assessor (QSA).

Terminal Security Labels

Intertronix's tamper-evident labels apply over a device's seams, screws, or access panels, so any attempt to open a card reader or swap it out leaves a torn or "VOID" mark behind. Sequential numbering options make it easy to log and verify that a specific device hasn't been touched since it was last checked.

Why it matters

The Payment Card Industry Data Security Standard (PCI DSS) requires businesses that handle card payments to periodically inspect point-of-interaction devices — payment terminals, PIN pads, and card readers — to detect tampering and unauthorized substitution (Requirement 9.5.1.2). Guidance on that inspection specifically calls out checking for missing or altered security labels as one of the signs of a compromised device. A tamper-evident seal gives staff something concrete to check at each inspection.

Sources: PCI DSS v4.0.1, Requirement 9.5.1.2