According to a report by the Guardian, the operating system on the new Z10device has been rejected after BlackBerry version 7.1 was cleared by the UK's Communications Electronics Security Group (CESG) for classifications up to ‘Restricted' – two levels below ‘Secret'. A survey by Trend Micro deemed that the BlackBerry 7.0 was named most secure mobile OS for enterprises.However tests on BB10 and the BlackBerry Balance software have failed the same security requirements and BlackBerry could not offer a date when revised software would be submitted.
A BlackBerry statement said: “We have a long-established relationship with CESG and we remain the only mobile solution approved for use at 'Restricted' when configured in accordance with CESG guidelines. This level of approval only comes following a process which is rigorous and absolutely necessary given the highly confidential nature of the communications being transmitted.
