Vulnerability by Design in Mobile Network Security

摘要

The GSM network, commonly called 2G, was designed during the 1980s when the Cold War was still ongoing. Due to political pressure from European governments, the security of GSM was deliberately made weak to allow easy interception by law enforcement agencies. Despite strengthened security in subsequent mobile network technologies of 3G and 4G, the weak security of 2G represents the 'weakest link' and thereby limits the security level of mobile networks in general. This article describes the evolution of mobile network security architectures, analyses their security vulnerabilities, and proposes solutions to mitigate the threats posed by these vulnerabilities.