In a way, I was glad that the anti-tamper system in the VeriFone MX 925CTLS rendered it a paperweight upon disassembly. It saved me from having to decide if I should bother reassembling it or not.

Nolan, Richard L., Donna B. Stoddard, and Hossam Galal. "VeriFone: The Transaction Automation Company (A)." Harvard Business School Case 195-088, July 1994. (Revised ...

In an attempt to combat what it is referring to as “merchant resistance,” payment solutions company Verifone has taken ... in all new POS (point-of-sale) systems deployed to merchants.