Hypercom Optimum M4240 Quick Reference Manual page 16

A terminal forms part of the money cycle and must therefore be handled as carefully as cash.
Attempts are often made to tamper POS terminals by opening them to obtain card details and
cardholder PINs.
It goes without saying that all terminals from B+S Card Service conform to the current
guidelines of the ZKA - Zentraler Kreditausschuss (Germany's central issuers committee). But
B+S goes a step further by also providing a means of visual security.
All terminals feature a security seal which is located on the side of the terminal – generally
between the lower and upper housing. If the housing is opened or an attempt is made to
remove it, the seal is destroyed.
Check your terminal daily and ensure that the security seal is not damaged.
Attention! Only operate the terminal using the original power supply. If someone attempts to
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B+S terminal security seal
Technical Safety
open the terminal housing, the integrated electronics will be destroyed and all
sales will be deleted.
B+S terminal security seal