Government surveillance one of the most interesting security topic, the possibility legally and not to interfere with digital experience of its citizens. Governments for various reasons, such as homeland security, spy on users tracking their operations on internet, intercept their communications and access to mail accounts. The number of inquiries from governments for access to users data in the first half of 2012 were 20,938 related to a total number of 34,614 accounts. US (7969), followed by India (2319) and Brazil (1566)”]