Question: In a 5G system, what is a key aspect of the supported mechanism for end-to-end protection between a User Equipment (UE) and a third-party application server, subject to regulatory requirements?
Option 1: The 3GPP network must decrypt and inspect all data for security threats.
Option 2: The 3GPP network is not able to intercept or modify the data transferred between the UE and the third-party application server.
Option 3: Only confidentiality, but not integrity protection, is ensured for all types of services.
Option 4: End-to-end encryption is only supported for non-URLLC (Ultra-Reliable Low Latency Communications) services.
Explanation: This option correctly highlights a crucial aspect of the end-to-end protection mechanism in 5G systems, emphasizing the privacy and security of data exchange between UEs and third-party application servers. By ensuring the 3GPP network cannot intercept or modify this data, the system maintains confidentiality and integrity, subject to regulatory requirements. This aligns with the principles of secure communication in telecom networks, where end-to-end protection is vital for sensitive information.