O2 is telling customers to stay alert after the discovery of a worrying new scam that's targeting UK users. The fraudulent ...

O2 has just issued an urgent warning to its customers after the discovery of a fake text message that suggests a SIM is about ...

O2's network collapsed overnight, but those signed up to other mobile providers shouldn't feel too smug: the outage caused carnage well beyond its direct customers. Waiting for a bus in London? The ...

O2 says its phone network is back up and running, and thoughts are turning to compensation. Richard Trenholm Former Movie and TV Senior Editor Richard Trenholm was CNET's film and TV editor, covering ...

Add Yahoo as a preferred source to see more of our stories on Google. Markus Haas, CEO of Telefónica Deutschland, pictured at the headquarters of mobile communications provider Telefónica (O2). The ...

Mobile network infrastructure isn't exactly an enthralling dinner-table topic, and yet somehow, O2's actually managed to make it sound interesting. The carrier's announced that it's switched on its ...

Mobile network operator O2 has blamed a problem with a third-party software installation for a nationwide network outage that has left millions of subscribers unable to access 4G data services on ...

Mobile operator O2 plans to launch a 15,000-strong nationwide network of free Wi-Fi hotspots located in public places such as coffee shops, and open to customers and non-customers alike. The scheme, ...