Ubuntu, a widely used and influential GNU/Linux distribution, has installed surveillance code. 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. (Canonical is the company that develops Ubuntu.)

To make matters worse, they also install adware, inserting Amazon promotions in your search results.

Ubuntu Spyware: What to Do? — Free Software Foundation — working together for free software.