Apple has published new information about the diagnostic capabilities of iOS, in what appears to be a response to suggestions that it includes a ‘backdoor’ that could enable governments and other third-parties to access user data. The controversy arose after security consultant Jonathan Zdziarski documented a vulnerability that could leave usage data on iOS device exposed. Rebutting subsequent reports that linked the vulnerability with government data collection, Apple told iMore that it has “has never worked with any government agency from any country to create a backdoor in any of our products or services.” In addition to detailing the capabilities of three diagnostic features in its new document, the company says: “Any data transmitted between the iOS device and trusted computer is encrypted with keys not shared with Apple.”