Microsoft experts concluded several years ago that Chinese authorities had hacked into more than a thousand Hotmail email accounts, targeting international leaders of China's Tibetan and Uighur minorities in particular — but it decided not to tell the victims, allowing the hackers to continue their campaign, according to former employees of the company.
On Wednesday, after a series of requests for comment from Reuters, Microsoft said it will change its policy and in the future tell its email customers when it suspects there has been a government hacking attempt.
The company also confirmed for the first time that it had not called, emailed or otherwise told the Hotmail users that their electronic correspondence had been collected. The company declined to say what role the exposure of the Hotmail campaign played in its decision to make the policy shift.