Barcodes like the datamatrix code allocate a unique sequence of numbers to a product, such as the european article number ean. These numbers, however, are easy to copy&mdashunlike bitsecure, the copy detection pattern by schreiner prosecure. This technology is based on a highresolution, cloudlike pattern, which cannot be copied by currently available technology. Customers who are using datamatrix codes can easily integrate the bitsecure counterfeitprotection feature into their existing systems.