By RFID MFG Editorial Team · Updated June 14, 2026

In short: A government project used PVC scratch cards carrying a serial number and hidden PIN for secure website login and registration — won on print quality.

Scratch cards pair a printed serial number with a PIN concealed under a scratch-off panel. The user reveals the PIN to authenticate — a low-cost, offline-friendly way to control access to a service or website.

For this government registration project, security and print consistency were critical: every card had to be unique, legible and tamper-evident across a large print run. RFID MFG won the work on print quality and reliable, secure production.

Key takeaways

  • Serial number plus hidden PIN for secure activation
  • Unique, sequential data across the whole run
  • Tamper-evident scratch panel
  • Won on print quality and production reliability

Frequently asked questions

How do scratch cards stay secure?

Each card carries a unique serial and a PIN hidden under a scratch panel; the PIN is only revealed by the end user, and unused codes stay protected.

Can you produce unique numbering at volume?

Yes. We generate sequential or randomized serials and PINs and print them consistently across large, secure production runs.