A security expert has said networks leaking your phone number to sites you visit is a problem several years old. Luke Westaway is a senior editor at CNET and writer/ presenter of Adventures in Tech, a ...

07:00, Tue, Sep 2, 2025 Updated: 10:27, Wed, Sep 3, 2025 If you are an O2 customer with a pay as you go SIM card lodged in your phone, you might soon notice two changes coming to your handset. Luckily ...