The SIM Information System in Pakistan is a vital component of network management.

Being a repository of SIM related data, this system carries substantial information on SIM cards associated with different telecom services in Pakistan.

This high-tech system gathers and saves information like SIM registration, activation process, and user identification.

Furthermore, it supports proper supervision of the SIM card usage, helping telecom operators to curb any unauthorized or illegal activities.

Registering SIM cards under the SIM Information System in Pakistan is a must, ensuring the safety and legitimacy of the telecom services in use.

This system falls under the purview of the Pakistan Telecommunication Authority (PTA), which makes sure that all distributed SIM cards in Pakistan are registered and authenticated.

Hence, the SIM Information System plays a dual role; it greatly aids in managing telecom services and concurrently acts as an important tool for national security.

The risk posed by unregistered or illegal SIM cards to national security is mitigated by this system through its rigorous SIM registration process.

To sum it up, Pakistan's SIM Information System holds immense significance, not just for telecom operators but also for the nation's overall security.