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 ...

O2 has fixed a bug in the way it handles mobile broadband traffic that saw its customers unwittingly exposing their mobile phone numbers to website owners. The operator apologised for the apparent ...

Mobile phone network operator O2 is urging customers to call a three-digit number and, if necessary, contact their bank as part of its latest alert. In a fresh wave of text messages and emails being ...

Add Yahoo as a preferred source to see more of our stories on Google. Users on O2 have been warned to watch out for a scam text. NurPhoto via Getty Images Phone users in the U.K. are being warned by ...

O2 is today (Friday) alerting customers to a fresh phishing scam where fraudsters impersonate the telecoms provider and falsely claim subscribers' SIM cards are nearing expiry. As part of the con, ...