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GLOSSARY

TSE (Technical Security Device)

A certified technical security device that signs German cash register transactions against tampering.

A TSE is a certified technical security device used with German electronic cash registers. It signs transaction data so sales, refunds, and cancellations can be checked for manipulation later. TSE support is a core part of KassenSichV compliance.

The best implementation is almost invisible for staff: transactions are signed automatically, receipts include the required information, and exports are available when accounting or an auditor needs them.

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