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 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 ...

UK carrier O2 has apparently fixed the loophole that exposed subscribers' mobile numbers to websites they visited using their handset's data connection, though there's still no official explanation as ...