IMSI Catcher For Surveillance


IMSI Catcher For Surveillance


“South African Police Service has been given the right to monitor and intercept cellular communications for surveillance purposes”

In a recent development, the South African Police Service has been granted the authority to monitor and intercept cellular communications for surveillance purposes. To accomplish this task, specialized devices known as IMSI catchers are employed. These devices play a crucial role in intercepting communication and tracking the location of mobile phones.

Understanding the Functionality of IMSI Catchers:

IMSI catchers are meticulously designed devices capable of discreetly acquiring fundamental identities, including the International Mobile Subscriber Identity (IMSI) and International Mobile Equipment Identity (IMEI), from mobile phones operating on 2G, 3G, 4G, and 5G (NSA) networks within their designated coverage area.

This covert operation ensures that service providers and phone users remain unaware of the interception, enabling law enforcement agencies to detect specific targets present within their operational region.

Additionally, IMSI catchers possess the unique capability to selectively switch phones operating on 3G/4G/5G networks to GSM mode, facilitating interception through passive or semi active solutions.

IMSI Catcher System by Stratign:

Stratign has developed an advanced IMSI catcher system that empowers law enforcement authorities in obtaining, intercepting, analyzing, and controlling cellular communications. The system is available in different versions, including standalone, backpack, vehicle-mounted, and drone-mounted versions, providing flexibility and adaptability to various operational scenarios.

Key Features of the IMSI Catcher System:

  • The system automatically scans the area to detect active 2G, 3G, 4G, or 5G (NSA) networks, capturing vital information such as IMSI, IMEI, Temporary Mobile Subscriber Identity (TMSI), handset location, and optional Public Land Mobile Network (PLMN) data.
  • The system can emulate service providers’ networks in different generations (2G, 3G, 4G, or 5G), effectively mimicking network services for seamless interception and analysis.
  • With full identification of IMSI, IMEI, and TMSI information within its range, the system offers dynamic control capabilities, including comprehensive denial of service measures.
  • The system provides accurate target location displayed on the integrated Geographic Information System (GIS) application. Integration with Stratign’s portable Direction-Finding System enhances location tracking capabilities.
  • Operators can selectively block 2G, 3G, 4G, or 5G (NSA) services for specific mobile handsets served by network operators, ensuring targeted interception.
  • The system’s link analysis feature compares IMSI and IMEI data collected at different times, enabling the identification of connections between places and times visited by the target.

In conclusion, the IMSI catcher system developed by Stratign is a powerful and advanced solution that empowers law enforcement authorities in acquiring, intercepting, analyzing, and managing cellular communications. With its extensive range of features, the system provides the necessary tools to effectively monitor and control mobile phone activity. By harnessing the capabilities of IMSI catchers, law enforcement agencies can enhance their surveillance capabilities and ensure the security and stability of their operations.

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