Do you think Ubuntu spies on you?
Answer: Yes it does I will show you how it does. I found out this said by Richard Stallman.
Free Software Foundation President Richard Stallman called Ubuntu Linux "spyware" because the operating system sends data to Ubuntu maker Canonical when a user searches the desktop.
"Ubuntu, a widely used and influential GNU/Linux distribution, has installed surveillance code," Stallman wrote in a post titled "Ubuntu Spyware: What to Do?" "When the user searches her own local files for a string using the Ubuntu desktop, Ubuntu sends that string to one of Canonical's servers. … Ubuntu uses the information about searches to show the user ads to buy various things from Amazon. Amazon commits many wrongs (see http://stallman.org/amazon.html); by promoting Amazon, Canonical contributes to them. However, the ads are not the core of the problem. The main issue is the spying. Canonical says it does not tell Amazon who searched for what. However, it is just as bad for Canonical to collect your personal information as it would have been for Amazon to collect it."
Google defines Spyware as a software that enables a user to obtain information about another's computer activities by transmitting data covertly from their hard drive.
How to do safe search?
In order to do safe browsing on your dashboard you need to filter result. Doing this you can let your interested machine to search for you. Just unclick the sources which you don't want to get you information.Debian has provided an easy method to browse your machine offline. In order to do so as shown in the picture below Off the on button and you are totally ofline. None of your searched data will be used by the online sources.