Microsoft to warn users of suspected hacking

The policy change comes days after Reuters asked the company why it had decided not to tell victims of a hacking campaign, discovered in 2011, that had targeted international leaders of China’s Tibetan and Uighur minorities, in particular.
According to two former employees of Microsoft, the company’s own experts had concluded several years ago that Chinese authorities had been behind the campaign but the company did not pass on that information to users of its Hotmail service, which is now called Outlook.com.