1. An apparatus, comprising: a processor; and a memory device including computer program code, the memory device and the computer program code, with the processor, for causing the apparatus to perform at least the following: provide modified serialization codes for a first entity in a serialization flow to replace existing serialization codes for the first entity, wherein the modified serialization codes have a representation of at least two different characters, and wherein a number of instances of one of the characters in the representation of the modified serialization codes is different from a number of instances of the one of the characters in the representation of the existing serialization codes; receive serialization codes from a second entity, the second entity being downstream in the serialization flow from the first entity; compare serialization codes from the second entity with the modified serialization codes; and verify the serialization codes from the second entity by determining if the serialization codes from the second entity are compatible with the modified serialization codes.