SS7 Vulnerabilities: Tracking Phones via Legacy Protocols

Описание: The Signaling System Seven, or SS7, protocol stack is the backbone of global telecommunications, yet its inherent trust model allows unauthorized location tracking and call interception. This deep dive reveals the exact SS7 messages—specifically Send Routing Information for Short Message (SRI-SM) and Any Time Interrogation (ATI)—used by surveillance firms and intelligence agencies to pinpoint any mobile subscriber globally, often for less than fifty dollars per query. We analyze the architecture of Signal Transfer Points (STPs) and the Home Location Register (HLR) to understand the vulnerability, explore the lucrative surveillance economy built around SS7 access, and detail the technical countermeasures, including advanced SS7 firewalls and Global Title Translation filtering, that Mobile Network Operators (MNOs) must deploy to meet regulatory obligations like GDPR.

00:00: The SS7 Location Loophole
00:56: Trust Model Failure Architecture
01:44: Tracking via SRI-SM Message
02:33: Intercepting Calls and Data
03:13: The Surveillance Economy
04:05: Regulatory and Legal Liability
04:51: SS7 Firewall Implementation
05:35: Diameter and 5G Evolution
06:15: Persistence and Future Risk

#SS7Vulnerability #Telecommunications #Security #MobileNetworkOperator #HLRTracking #DiameterProtocol #TelecomBusiness