ft HoloLens, and the edge cloud within milliseconds, with tight latency requirements. Today, 5G is the most suitable wireless technology to facilitate connectivity for XR applications. Network slicing makes 5G commercially feasible in such Metaverse scenarios. Security considerations for network slicing Let us look at the security implications of network slicing. The following security challenges should not be overlooked: Hackers can gain access to one slice and exploit it to access sensitive data from other slices. They could also disrupt the services provided by the other slices. If the underlying physical infrastructure is compromised, then potentially all the slices can be disrupted. To prevent this, the infrastructure has to be hardened and limited to administrators. Hackers could initiate a Denial of Service (DOS) attack from a slice, which can then paralyze an entire network infrastructure. "Improper network slice management may allow malicious actors to access data from different network slices or deny access to prioritized users." This is according to a paper published by the National Security Agency (NSA), the Cybersecurity and Infrastructure Security Agency (CISA), and the 5G Network Slicing Office of the Director of National Intelligence (ODNI). (For more information, visit https : www.bleepingcomputer.com/news/security/nsa-shares-tips-on-mitigating- 5g-network-slicing-threats/.) To safeguard from security challenges, it is important to ensure Confidentiality, Integrity, and Availability (CIA) for 5G network slicing protection. Advanced migration strategies can include the following: Zero Trust Architecture (ZTA) requirements Multi-Layer Security (MLS) Cross-Domain Solutions (CDS) Post-Quantum Cryptography (PQC) Isolation A detailed description of these security techniques is beyond this chapter and book. In this section, we looked at a description of 5G network slicing as well as its challenges. Let us next look at the architecture and design of network slicing. Network slicing architecture and desig