O2 has issued an apology for the major security flaw which saw the mobile network accidently leak users' mobile phone numbers to every website they visited. The mobile network blames technical changes ...

O2 has apologised for a technical problem which caused users' phone numbers to be disclosed when using its mobile data. The company said it normally only passed numbers to "trusted partners". A ...

Update: Mobile operator O2 says that as of 2pm Wednesday, it has fixed the part of its mobile web browsing service that was reporting mobile phone users’ telephone numbers to websites they visited via ...

Mobile phone operator O2 admits some of its customers’ numbers have been exposed while they browsed the internet using their smartphones – but tells Channel 4 News the issue is now fixed. The numbers ...

The mobile phone operator O2 is investigating a major security flaw which gives users' mobile phone numbers to every website they visit. Twitter users Lewis Peckover created a website on January 24 ...

UK carrier O2 finds itself embroiled in data protection controversy today, with allegations that the operator is revealing mobile users cellphone number to each website they visit on their phone.

O2 has fixed a flaw which saw customers’ mobile numbers being shared with websites they visited while browsing on 3G. O2 launched an investigation into the claims customers’ mobile phone numbers were ...

An experiment set up by Lewis Peckover, a 28-year-old web systems administrator, called attention to the problem last night. Peckover showed that O2 was providing websites with the mobile number of ...

Mobile users’ phone numbers are being leaked to every website they visit because of a security glitch, it has been claimed. Research by a British IT expert suggests that the operator O2 sends its ...