Abstract:

With the popularization and rapid development of internet, the problems concerning information security have become increasingly prominent, causing increasing security risks. Information systems, networks, and network applications have been attacked frequently, and the attacking methods have become increasingly sophisticated, mature, and diverse. As the most popular OS worldwide, Windows system naturally has received more attacks than others. Facing the more advanced attacks, Microsoft constantly launches new version of Windows with new security features. Among these security features, the improvement of controllability is important to reduce security risks. Not only the security risk controllability of an information system should be assured, but also the users can control the security risks to a certain extent. This paper analyzes and discusses what new security mechanisms have been introduced based on Windows 8, and what existing security solutions have been improved in this new version, and lastly how these new measures impact on the security risk controllability.

Key words: Windows, controllability, security features