The document discusses the challenges faced by the consumer products sector in adopting mass serialization for brand protection and digital marketing. It identifies five main barriers: implementation difficulties related to packaging design, consumer engagement hurdles, ownership issues regarding digital marketing programs, security concerns about replication of serialized barcodes, and unclear value propositions for investment. Despite the potential benefits of serialized barcodes for enhancing consumer loyalty and combating counterfeiting, the sector has largely failed to leverage these technologies effectively.