I'm a big fan of Linux. I use it on all of my personal computers, and most of my business computers. ( I do keep a Windows machine around, but it's mostly for translating/converting files nowadays) The main reason I use Linux is that it is typically less intrusive, and contains less built-in spyware than other operating systems. Unfortunately, this lack of spyware is not universal across the entire Linux Spectrum of Operating Systems. Some distros appear to contain built-in spyware that tracks your every keystroke and sends that data to a server. http://www.gnu.org/philosophy/ubuntu-spyware.en.html According to Richard Stallman of the Free Software Foundation, "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." Basically, Ubuntu appears to contain a keystroke logger. He goes on to say "Ubuntu allows users to switch the surveillance off. Clearly Canonical thinks that many Ubuntu users will leave this setting in the default state (on)." Moreover, if an advanced user disables/ removes these "features" it appears that Ubuntu may reinstall them with the next update. Stallman: "People will certainly make a modified version of Ubuntu without this surveillance. In fact, several GNU/Linux distros are modified versions of Ubuntu. When those update to the latest Ubuntu as a base, I expect they will remove this. Canonical surely expects that too." I have also heard from other Ubuntu users that their "opt-out" selections have mysteriously changed themselves back to the default settings of allowing the spyware to operate. Now... does that mean that Linux is as bad as other operating systems? No... not all Linux distros, but maybe Ubuntu. Am I even opposed to Ubuntu? Not really.... BUT I think that anyone using that distro should be aware of the spyware, and keep a watch on their settings... or if they are concerned about their privacy, then they may want to consider switching to a more secure version. One note: Canonical has said that they will remove the "Amazon" portion of the spyware from the next release, which is due out in the next few weeks. However, they have not said that they will remove the keystroke logger.... so it remains to be seen whether or not the next release will actually be clean. My advice: be sure to look at your Linux distro carefully before using it for sensitive information. Also: Linux.org has a rather strongly worded forum debate about the issue: http://www.linux.org/threads/do-not-use-ubuntu.3977/ It does contain arguments For and Against Ubuntu.... so you can read it for yourself and make up your own mind.