Three has revealed that a customer data breach it caught wind of last November was more extensive than first thought. Using stolen employee logins, ne'er-do-wells gained access to a database used to manage handset upgrades, comprising customer details such as names, addresses, dates of birth, mobile numbers and information about mobile contracts (but no financial data). Initially, just over 130,000 subscribers were said to be affected, but upon further investigation, another 76,373 accounts have now been added to that total. No fraudulent activity has been spotted, but all newly identified customers have been contacted, Three says.