The following sections describe password security and encryption and ways to protect information and conceal evidence from prying eyes. They outline the basic processes of managing the security of computer devices and networks as well as describing the reasons why digital information needs protection from a wide range of threats.
To protect data stored on a device from unauthorized access, user access controls offer some degree of protection. This applies to desktops, laptops, mobile phones and other handheld devices, home security systems, and a broad range of other electronic equipment. Not only is it essential to restrict direct human access to information to those who are authorized, but the information also needs protection from access by other programs, processes, or systems that may be connected to the device. For example, workers logged in to a network server should normally have no access to...