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 ...

· New, free-to-download app lets users make and receive calls, texts and voicemail from their existing O2 number on any supported device · Calls are charged in line with a Pay Monthly tariff – with ...

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 ...

Mobile telecommunications operator O2 sends its customers’ telephone numbers to website operators when they visit their sites from their mobile phones, an engineer has discovered. Lewis Peckover, a ...

O2 has faced a flood of criticism on Twitter after it was accused of sharing mobile phone users' personal information with every website they visit. The mobile carrier has allegedly been transparently ...

Tests suggest some, but not all, O2 mobile data users are affected O2 has been accused of exposing the phone numbers of customers who browse the internet using its mobile data. Lewis Peckover, a ...

Apple's iPhone has lived up to expectations as the most-talked about handset ever released, with O2 revealing that its successful bid to sell the device exclusively in the UK had triggered a ...

Tests suggest some, but not all, O2 mobile data users are affected O2 has apologised for a technical problem which caused users' phone numbers to be disclosed when using its mobile data. The company ...

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 ...