Sai Raghavendra Varanasi, Sesha Sai Sravanthi Valiveti, Muhammad Adnan, Md Imtiaz Faruk, Md Jubayar Hossain, Mia Md Tofayel Gonee Manik
The digital twins (DTs) are central to the next-generation communication system, and it allows real-time simulation and control. Their development under cross-domain ecosystems however reveals the fundamental weakness in interoperability, security and trust which is made worse by heterogeneous data model stipulations and antagonistic policies. This paper offers an analytical report of the DT standards environment, where major shortages are observed in security architecture and federated intelligence. To overcome these problems, we introduce a new framework of Intelligence Secure Edge Framework (SEIF) that incorporates Trusted Execution Environments (TEEs), blockchain and federated learning. Also, we introduce a road-map towards cross-domain standardization that is discussed stratified and propose a list of urgent research directions to make acquiring a secure and scalable deployment of DT in 6G and 6G.