The IoT data security package Blockchain-on-a-SIM is a solution developed in cooperation with G&D, ubirch and 1NCE. The card manufacturer G+D Mobile Security prepares the SIM for the ubirch trust protocol during production. This modification in the manufacturing process makes it possible to seal the data directly at the source, in this case already on the SIM. A subsequent modification of the SIM is therefore not possible and the standard SIM card from 1NCE cannot be used for this. Please contact our Sales Team via the contact form on 1NCE.com to order the Blockchain-on-a-SIM solution.