How do GSM interceptors work and its types!

In today’s time, cellular Interceptions & cellular monitoring technologies indeed provide LEAs and Government Agencies with a technological edge. It is via cellular interception, that users can attain Communications Intelligence (COMINT) which aids various authorities to secure, investigate, and control intercepted wireless communications like voice and data.

Hence, in the battle against terrorism and criminal activities, a real-time GSM interception system was created to offer world-wide government and law enforcement societies with the most valuable spectrum interrogation tool. Today, several Law Enforcement surveillance users go for the updated GSM Interception Systems with communication control and forensic attributes.

What is a GSM Interceptor & how does it work?

A GSM interceptor is an equipment that can collect information from hundreds of phones across targeted vicinities and can intercept conversations and messages & execute ‘denial-of-service’ attacks on phones. Hence, a GSM Interception system works by breaking the GSM encryption algorithm during real-time communications that secure cellular phones on a GSM cellular service network.

Knowing the types of GSM Interception Systems via Stratign!

a) Stratign’s Active GSM Interception System

The evolution of GSM technology along with augmented technological attributes and heightened complexity presents Stratign with a competitive environment to fabricate and construct solutions to provide a complete ‘Off-The-AIR Communication Surveillance System’ to diverse Government and Intelligence-Gathering clients. The Semi-Active GSM Interception System has a universal operating capability. This system can be utilized to intercept communications globally, from any GSM service-providers, irrespective of the type of encryption being exercised. In the active mode, the system imitates the cell-phone tower making it to act as a genuine unit and influences the target’s mobile phone to register with it.

Product Features:

    • Capable of Interception and logging of all GSM, 3G and 4G Bands.
    • Configurable number of channels starting from 04 channels to 16/32 channels
    • Interception of GSM communications in real-time: Encrypted in A5/1 and A5/2 Ciphering algorithms.
    • Automatic tuning of the Receivers: Holds a possibility to scan and recognize control channels & communication system boundaries.
    • The System does not necessitate the service provider’s SIM for operation.
    • The system can monitor all communications of the target (Voice, CRI, Location) till the time it is within the coverage range.

b) Stratign’s Passive GSM Interception System

The Passive GSM Interception System from Stratign is a ‘multi-channel tunable’ GSM Monitoring system. Each receiver is self-reliantly connective & tunable to any BTS of the GSM Network. This system from Stratign is meant to guarantee interception and deciphering of audio conversation from standards such as GSM-850/900/1800/1900MHz Cellular network in a static or in a mobile-environment. The Passive systems can be easily integrated with an active 3G/4G unit to downgrade the communication to 2G for interception of 3G and 4G networks too.

Product features:

    • A configurable number of channels starting from 04 channels to 16/32 channels.
    • Automatically identifies, decodes the ciphering algorithms utilized on the network in real-time. It also records mobile phone conversations,
       call-related data & network-information to the hard-disk of the system.
    • Ability to scan GSM network parameters in the restrained area (Service Provider, Broadcast Channel Number, Cell IDs, Signal Levels).
    • Possibility of full-time operation in an auto mode without any involvement from the operator.

c) Stratign’s Hybrid GSM Interception System

The Hybrid GSM Interception system from Stratign is a combination of Passive and Active subsystems. Both the passive element and the active element of the system can work in synchronization. The passive component can be utilized to investigate missions, while the active component can be utilized to support the target-based interception. This makes the system more discrete and difficult to detect.

Product features:

    • The passive system can operate on all the four GSM bands: 850/900/1800/1900MHz
    • System’s ability to integrate with active 3G and 4G Nodes
    • Configurable number of channels starting from 04 channels to 16/32 channels

In conclusion, Stratign’s GSM Monitoring solutions are wholly integrated, compliant and portable systems which can be conveniently moved and implemented for critical mission-based circumstances. These GSM Monitoring systems offered by Stratign can be customized to fit in your existing vehicle or vehicle of your choice to intercept the target while moving.

The Importance of Communication Security (COMSEC)

Communication and network security are essential to our modern life. The Internet, the world-wide-web, swift messaging, online banking, and various other technologies depend on network security; our contemporary world cannot survive without. Basically, communication security emphasizes on the confidentiality, integrity, and accessibility of data in motion, which is why communications in military operations have constantly played a vital role in the functionality and accomplishments of the armed forces. As military technology progresses to stay aligned with today’s threats, so do the requirements situated on tactical communications.

Understanding COMSEC and its significance!

COMSEC (Communication Security) in general refers to the security of data that is transmitted or communicated. This is instigated by ensuring the two information-based assurance pillars of confidentiality (ensuring that the information is undetected or unseen) and integrity (making sure information is unchanged), are sustained within our numerous ways of telecommunication. It safeguards traffic on military-communication networks, comprising voice, video, and data, utilized for both analogue & digital applications along with wired and wireless links.

There are several COMSEC specialties, which include the following:

  a) Cryptographic security: Encrypts data and represents it unreadable until the information is decrypted.
  b) Emission Security: Blocks the release or capture of equipment emissions to prevent information from illegal interception.
  c) Physical security: Assures the safety of, and avoids unauthorized access to a network’s cryptographic data, documents, and equipment.
  d) Transmission security: When data is tangibly transferred to stabilize the issues such as service interruption, it defends illegal access.

Moreover, each element of COMSEC fits into the procedure & process linked with transmitting a message from its inception to its reception. Every aspect is intended at blocking an enemy’s unambiguous attempt to penetrate the security at any assumed stage of the message-sending activity.

Hence, with solutions from Stratign, gaining resiliency, protection & flexibility for civil agencies, militaries and governments with the finest and superlative competencies in network services and solutions is achievable. Here’s how!

Let’s know more about the Inbuilt Secure GSM Application (STN-ISG3G) via Stratign

Stratign’s substantial experience in developing and advancing innovative defense technology solutions reflects in offering essential communication security products such as the Secure GSM software.

Being a versatile encryption software application, Stratign’s STN-ISG3G is constructed to safeguard phone calls from eavesdropping. By assuring high-quality audio and a noise-free background, STN-ISG3G offers an unmatched level of security due to point-to-point encryption with downright secure duplex communication.

In situations where the data network provides a global IP address, it functions as peer-to-peer to offer end-to-end protection. On the other hand, it can also work through the ISG3G server which can be owned by the customer, managed and even positioned at the customer’s location.

Comsec Advanced Features:

  • Duplex communication: Fully secure
  • Voice Calls with HD audio: Point-to-point encrypted
  • SMS feature; End-to-End Encryption
  • Only pre-checked & signed apps permitted, installation of unsigned apps is entirely disabled
  • Fully verified boot: Covers all firmware & OS partitions
  • Back-ported security with regular updates to tackle new threats
  • Secure world-wide calls: No international call tariffs incurred
  • Easy to operate: Via an intuitive and user-friendly interface
  • Uninterrupted call conversations: Due to a clean & noise-free sound along with a speedy and stable connection

Overall, as warfare shifts to the cyber field and considering the increased risk of being hacked on elements connected to the internet, COMSEC remains to be of utmost importance as it facilitates the safety of our personal data, the privacy of our telecommunications and diverse military operations. Stratign’s technically advanced COMSEC solutions would thereby enable any defense & intelligence organization to facilitate exceptionally effortless & secure communication over a network.

Why Intercepting Satellite Phones is a challenge for Intelligence Agencies

The widely used Global Mobile Personal Communication Systems (GMPCS) such as Iridium, Thuraya and Inmarsat have global coverage and does not depend on the standard terrestrial communication networks for their communication. This poses a major interception challenge to the Government agencies which are involved in maintaining law and order and homeland security. The utilization of Satellite Phone by terrorists, criminals and anti-national elements are proving to be a big concern for intelligence agencies when it comes to the interception of satellite phones.

Before gaining insight on these challenges faced by intelligence agencies, let’s quickly know more about satellite phones, it’s interception and underlying obstructions further.

A satellite phone can be understood as a type of cell phone that links to either another satellite phone or any other PSTN phone. This is made possible by means of Geo-stationary satellites or satellites that revolve around earth in specific orbits which relay the signals from the satellite phones.

Challenges in interception

a) Non-dependence on Terrestrial Networks: Satellite phones are utilized by organizations operating outside the coverage range of mobile phones, for example in shipping, oil & gas exploration, and for military use. Satellite phones are also used by people who want to avoid the public telephone networks which are easy to intercept.

Intelligence agencies come into the picture with regards to the collection and analysis of information. The main purpose of intelligence is to create an accurate activity profile comprising of terrorists and their activities. Interception of satellite phone communication require specialized equipment and Stratign’s satellite interception solutions provide an easy tool to the Intelligence agencies to intercept and analyze GMPCS communications.

b) Encryption: Intelligence agencies constantly face a challenge with the fact that phone-tapping and interceptions are now yielding declining returns as terrorists have found unique ways of staying ahead of them. Terrorists are increasingly using utilizing the new-generation Inmarsat, Iridium and Thuraya satellite phones, making their interception difficult. Even though these phones can be monitored off the air, their conversation is only obtainable in encrypted format. This necessitates decryption of the signals to extract intelligence information from the calls. Stratign has developed state-of-the-art decryptors which can decrypt these communications in real time.

Hence, another concern considering the above would be changing communication patterns. Before, lawful interception was straightforward & less complex because it was restricted to circuit-switched networks containing voice traffic. Today, terrorists have an extensive range of cutting-edge, encrypted communication channels accessible to them, and several of those channels depend on resources located externally via the jurisdiction of the body proceeding the interception warrant. With the communication patterns constantly changing, the scope of interception has broadened, which presents a genuine challenge to these agencies.

c) Frequency Reuse: Another challenge faced by the interception agencies is the frequency reuse and dynamic frequency re-allocation being done by the satellite service providers. The interception hardware being used need to be frequency agile and should be able to automatically tune to the active spot beam frequencies failing which, the communication would be lost. Stratign’s GMPCS interception systems automatically tunes it’s receivers to the active frequencies in range, thereby making the system frequency agile. With Stratign, get your access to customized solutions for Satellite Interception System. We recommend intelligence agencies to opt for our automated platform that conducts passive collection of satellite transported information which would aid them to extract plain voice/ fax and data information.

Stratign provides solutions that are customized to your requirements for Communication Surveillance and Intelligence. This comprises of diverse communication interception & collection approaches, processing tools and signal analysis along with high-quality stand-alone decoding & demodulation systems which can be assimilated into your existing intelligence systems.