"//Zeitgeist service comes pre-installed in Ubuntu and logs all activity such as files accessed, visited websites, etc. Activity Log Manager Zeitgeist is a GUI based application which lets you gain control of the information that Zeitgeist logs. It allows creating blacklists according to file or application type to disable logging for specified applications and user activities. This ensures that your personal information can be controlled from showing up in Zeitgeist logs. For example, you can use Activity log Manager to disabled logging for visited websites, certain file types (e.g. Libre Office files) and so on.// This is a must have application if you want to disable exposing your activities to anyone including cannonical. Otherwise applications such as Synapse (which uses Zeitgeist daemon) exposes the data to anyone! Therefore if you are using applications like Synapse then this is a must have tool. "