NATIONAL SECURITY SYSTEM SS7Guard is a national-level mobile signalling defense capability for state, defense, and critical infrastructure programmes. Bu platform ulusal güvenlik ve kritik altyapı kurumları için tasarlanmıştır; yetkisiz operasyonel kullanım kesinlikle yasaktır.
Mobile Network Security Program

Strategic Mobile Network Defense

Device-Level Defense Against SS7-Based Mobile Network Threats

A mobile threat verification and rogue base station detection platform designed for national security, critical infrastructure, and government communications.

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Deployed as a controlled capability for government, defense, and critical infrastructure programs.

Live SS7 Surface Overview Monitoring Required
Exposed Signaling Regions
76
High-risk SS7 interconnects
Observed Silent SMS Events
1,942
Last 24 hours (sample)
Anomalous Location Requests
312
Non-domestic origins
Rogue Base Station Candidates
27
Pending verification
Illustrative values for briefing purposes only.

Strategic Context

The SS7 Risk Surface

The Signaling System No. 7 (SS7) protocol underpins global mobile communications. It was designed for a trust-based environment that no longer exists.

Legacy Signaling, Modern Threats

SS7 was designed in 1975, without cryptographic authentication and under a trusted-operator assumption. Its design prioritized interoperability and reachability, not adversarial resilience.

  • Plain-text signaling between operators
  • No mutual authentication between core elements
  • Limited native integrity controls

Persistent in 4G / 5G Environments

Despite newer protocols, SS7 remains active in global roaming, interconnect, and fall-back paths. Adversaries continue to leverage SS7 pathways even in nominally modern networks.

  • 4G/5G roaming still traverses SS7 segments
  • Legacy interconnects remain exposed
  • Attack surfaces extend beyond national borders

Operational Consequences

Weak signaling controls enable strategic exploitation of subscriber signaling, location, and messaging channels at scale.

  • Location tracking across territories
  • SMS interception and manipulation
  • Forced downgrade and session disruption
SS7 Architecture Overview
International Signaling Cloud
STP MSC HLR / HSS VLR
National Networks
Placeholder schematic for protocol-level briefing diagrams.
SS7 Protocol Stack
Application: MAP / INAP / CAP
Transaction: TCAP
Signaling: SCCP / ISUP
Network: MTP Level 3
Link: MTP Levels 1–2
Telecom Core Network Elements
MSC GMSC HLR STP
EIR SMS-C Lawful Intercept
Diagram placeholders for formal architectural documentation.
SS7Guard national telecom infrastructure risk assessment map
Illustration of SS7Guard-enabled assessment of national and international telecom infrastructure risk.
Download National Risk Map (PNG)

National Security Impact

Critical Infrastructure Exposure

SS7 vulnerabilities extend beyond telecommunications. They create cross-domain exposure for government communications, critical infrastructure operators, and regulated industries.

Threat Vector Operational Impact Risk Posture
Political surveillance
Systematic tracking of diplomatic, military, and policy leadership movements across borders.
High
Financial 2FA hijacking
Interception and redirection of SMS-based one-time passwords for banking and critical financial systems.
High
Rogue base station tracking
Use of fake base stations to anchor devices onto hostile infrastructure and manipulate signaling paths.
Elevated
Executive location intelligence
Pattern-of-life analysis for senior executives in public, private, and critical infrastructure entities.
Elevated
Telecom-level data breaches
Unauthorized extraction of subscriber data and signaling records via compromised or misused interconnects.
Medium
Assessment Format

This representation follows a national-level threat assessment structure. It is designed to support classified annexes, executive briefings, and inter-agency coordination documents.

SS7Guard Platform

Operator-Independent Mobile Threat Verification Layer

SS7Guard provides a device-level verification layer that operates independently of mobile network operators, creating a defensive control point directly on authorized devices.

Capability Function Operational Use
Android-based mobile client
Deployable security application for government-issued and controlled devices. No root access required.
Standardized deployment to executive, operational, and field devices.
Real-time MCC / MNC / TAC validation
Continuous verification of mobile country code, network code, and tracking area codes against trusted baselines.
Detection of anomalous roaming, unauthorized network anchoring, and rogue tracking areas.
AI-powered anomaly scoring
Pattern analysis of signaling behavior, cell transitions, and roaming events using trained models.
Prioritized alerting for high-risk signaling events and suspected SS7-based manipulation.
Silent SMS detection
Identification of signaling-only messages used for location tracking and probing.
Operational awareness of device targeting and reconnaissance activity.
Downgrade attack alerts
Monitoring of forced transitions from secure to weaker radio access technologies.
Early warning of attempts to move devices into exploitable signaling environments.
Encrypted forensic logging
Cryptographically protected local and remote event logs for post-incident investigation.
Support to legal, regulatory, and intelligence processes.
Secure API-based remote validation
Controlled uplink of anonymized or pseudonymized event data to central validation services.
Cross-device correlation, fleet-wide posture assessment, and central threat intelligence enrichment.

Global SS7 Activity

Real-Time Threat Surface View (Simulated)

This panel provides a continuous, simulated view of SS7-related activity across regions, aligned with the SS7Guard threat model. It is designed for briefing and demonstration purposes and does not display live classified telemetry.

Suspicious SS7 signalling pattern Silent SMS / location probe Mitigated by SS7Guard policy

Technical Architecture

Layered Defense Model

SS7Guard is structured as a layered defense system, from the device to central intelligence pools, with clearly defined responsibilities at each layer.

  1. Layer 1 – Mobile Client Intelligence
    On-device monitoring of cell identity, signaling behavior, and network parameters with tamper-aware controls.
  2. Layer 2 – Signal Behavior Analysis Engine
    Local analysis of handovers, paging, location updates, and SS7-related events to identify abnormal patterns.
  3. Layer 3 – AI Risk Scoring System
    Model-driven evaluation of observed behavior with contextual factors such as geography, time, and historical baselines.
  4. Layer 4 – Secure API Verification
    Mutual-authenticated communication with central verification services over hardened channels for high-confidence decisions.
  5. Layer 5 – Central Threat Intelligence Pool
    Aggregated and curated intelligence on signaling anomalies, rogue infrastructure, and known hostile patterns.
  6. Layer 6 – Forensic Logging & Reporting Module
    Structured reporting interface for incident reconstruction, compliance documentation, and inter-agency sharing.
Authorized Devices Layers 1–3
Secure Verification Services Layer 4
National Threat Intelligence & Forensics Layers 5–6
Diagram is a non-classified representation of the SS7Guard layered defense model.

Regulatory & Governance

Regulatory Alignment & Compliance Readiness

SS7Guard is designed to align with prevailing data protection, national security, and critical infrastructure governance frameworks.

GDPR & KVKK

Supports data minimization, purpose limitation, and secure processing principles under GDPR and KVKK regimes, with configurable retention policies and pseudonymization options.

ISO 27001 Alignment

Integrates with information security management systems, providing auditable controls, logging, and incident evidence to support ISO 27001-certified environments.

Critical Infrastructure Standards

Designed for operators classified as critical infrastructure, supporting network-level resilience and signaling-layer situational awareness.

Government Data Protection Frameworks

Enables deployment within sovereign environments and government-operated clouds, with options for full national data residency.

Audit-Ready Positioning

A detailed compliance mapping and control catalogue is available as part of the confidential technical documentation set for competent authorities and accredited auditors.

Deployment Focus

Target Institutions

SS7Guard is intended for controlled deployment within state, regulatory, and critical infrastructure environments.

Ministries of Defense

Protection of command, control, and defense communications from signaling-layer exploitation.

Interior Ministries

Secure mobile communications for internal security, border, and emergency management operations.

National Telecom Regulators

Independent verification of operator security posture and cross-border signaling exposures.

Law Enforcement Agencies

Hardened devices for investigative, protective, and operational units with elevated threat exposure.

Critical Infrastructure Operators

Defensive coverage for energy, transport, finance, and other strategically significant sectors.

State-owned Telecom Providers

On-device verification layer complementing network-side signaling firewalls and controls.

Strategic Technology Partner CodeGuardSolutions

Strategic Positioning

Containing SS7 Risk at the Device Level

“SS7 cannot be replaced immediately.

But its risks can be contained.

SS7Guard establishes the first defensive line at the device level.”

Confidential Technical Documentation Available Upon Request