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 ...

O2, a UK-based telecom services provider, is having severe issues as their Priority website crashes on Thursday, Nov. 9, due to the influx of people wanting to attend the comeback event of English ...

O2 may also be unwittingly assisting spammers, allowing them to match email addresses with phone numbers. See below for more updates. If you reside in the UK and you are one of the millions of ...

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 ...