Mobile networks

How mobile networks work and where they expose their users, from SS7 and SIM swapping to 5G and operator-level identifiers.

SMS 2FA no longer protects anything: what to use instead

SMS 2FA no longer protects anything: what to use instead

On 9 January 2024, the official X account of the Securities and Exchange Commission, the US financial markets …

5G, Location Data and the Law's Targeting Error

5G, Location Data and the Law's Targeting Error

In 2011, Detroit police asked a mobile operator for the cell site records of Timothy Carpenter’s phone. …

Permanent geolocation: how your phone tracks you even when you think you have stopped it

Permanent geolocation: how your phone tracks you even when you think you have stopped it

In 2024, two researchers at the University of Maryland repeatedly queried Apple’s Wi-Fi positioning …

Utiq: The new telecom 'Super-Cookie' threatening your privacy

Utiq: The new telecom 'Super-Cookie' threatening your privacy

The scheduled end of third-party cookies on web browsers has triggered a true arms race in the targeted …