Ericsson Research Blog

Research, insights and technology reflections

Protecting 5G against IMSI catchers

IMSI catchers are devices used to intercept wireless traffic and trace subscribers by their long-term identifiers (IMSIs). While the phenomenon is often exaggerated, IMSI catchers do pose a threat to subscriber privacy. On-going 5G standardization done in 3GPP is a golden opportunity to improve subscribers’ privacy by constructing a protocol architecture that protects against IMSI catchers.

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