ESD Overwatch System

The first and only strategic real-time IMSI catcher detection system

ESD Overwatch enables network operators and authorities to eliminate illegal use of IMSI catchers, nationwide, every day of the year. Deployment of hostile base stations has become a common threat as costs and procurement hurdles have been continuously falling. The ESD Overwatch network security system is the world’s first system capable of distributed detection, localisation, alarming and neutralisation of active attacks on mobile communications via the air interface.

Leveraging GSMK’s patented Baseband Firewall technology that is in the Cryptophone 500i, powerful stationary sensors can be combined with standard commercial mobile phones to permit a comprehensive and cost-efficient detection of rogue base stations, including fake cell towers (IMSI Catchers), as well as individual attacks carried out over the air interface.

The system integrates and synthesises data from both types of sensors in a national situation report for cellular communications, allowing network operators, government agencies and information critical industries, for the first time, to detect and combat rogue base stations used for eavesdropping and fraudulent activities in real time.

Without a dedicated detection and protection system, the existing cellular infrastructure can no longer be trusted:
  • IMSI Catchers

IMSI catchers are being widely used by state and nonstate actors as size, cost and procurement hurdles are continuously falling.

  • Hostile Takeover of Baseband Processors

The air interface of present-day smartphones, tablet computers and M2M devices can be exploited for grave attacks. Baseband processors are highly vulnerable and often not under control even of manufacturers. Baseband processors often control the audio path directly (room bugs) or would allow Denial of Service attacks (phone not reachable).

  • Modified PicoCells

PicoCells are targets of attacks as well as tools for active attacks.

  • Other Air Interface Attacks

Jamming of mobile bands/frequencies using Denial of Service (DoS) and forcing the network down to the less secure 2G network.