Passive Cellular System

A Passive Cellular System is a surveillance technology that silently intercepts and monitors cellular network signals (GSM, 3G, 4G, 5G) within its operational range without transmitting any signals itself. Acting as a fake base station (IMSI catcher or “Stingray” type device) or a passive receiver, it can identify active mobile devices (by their IMSI number), track their location, and in some cases, intercept calls, SMS, and data traffic. Used lawfully by intelligence and law enforcement agencies for counter-terrorism, criminal investigations, and securing high-profile events, its operation is typically subject to strict legal authorization and oversight.

• Intercepts cellular communications passively without alerting target devices.

• Can identify, locate, and monitor mobile phones within its coverage area.

• Used for lawful electronic surveillance, counter-intelligence, and criminal investigations.

• Operates by mimicking a cell tower or by passively listening to handset-tower communications.

• A powerful tool in the signals intelligence (SIGINT) and electronic surveillance arsenal.

• Deployment and use are highly regulated and require appropriate legal authority.

Note: Technology for authorized law enforcement and intelligence use only.