Skip to main content

Cooperation partners Otto Kuennecke and Schreiner ProSecure offer economical package solution for PIN mailing

Every day thousands of letters with PINs for debit and credit cards, cell phones and, increasingly, ID cards are mailed. As the special forms that are typically used do not offer optimum protection of the confidential information Schreiner ProSecure in collaboration with the Otto Künnecke Group developed a modular system that meets the highest security standards. This PIN protection concept prevents tampering during the production process and while the security documents are on their way to the users  by printing the PINs only during the personalization process and by securely sealing them between two labels. 

As specialists for PIN protection labels and for the printing and mailing of security documents, Schreiner ProSecure and Otto Künnecke closely work together. Their aim is to make PIN mailing absolutely safe and to develop accordingly high security standards. The combined know-how of printing and post-personalization plus PIN protection labels results in a tailor-made solution that meets every customer’s specific PIN protection requirements. Therefore, the sender and the recipient can rely on the privileged information arriving safely and, most importantly, unread.


The PIN handling system by Otto Künnecke either prints complete mailers or prints the PIN and attaches the PIN cover during the personalization process. This means that the code is already protected during personalization and packaging. The PIN Safe label by Schreiner ProSecure seals the PIN between two security labels. Consequently, the combination of numbers cannot even be spied out by using optical, chemical or physical methods. This has been confirmed in tests by the independent testing institutes FOGRA and PIRA.

After identifying the address label by means of a barcode the first PIN protection label is attached to the mailer. Then the system decodes the PIN and prints it using an ink-jet system. Afterwards the second label is attached, which immediately covers the code. The mailer can then be automatically inserted into the envelope. The end user ultimately exposes the PIN by simply scratching off the top label.