The UK carrier Three Mobile confirmed a major cyber security breach which could have exposed the personal data of millions of customers. Three Mobile admitted that hackers have accessed its customer upgrade database by using an employee login. Credit card data, bank account data were not exposed, but the hackers did have access to customer names, addresses, phone numbers, and dates of birth. The NCA has already arrested three men, two on computer misuse allegations and one on suspicion of attempting to pervert the course of justice.”]
Source: http://securityaffairs.co/wordpress/53553/breaking-news/three-mobile-data-breach.html