Do you get creeped out when an ad eerily related to your recent Internet activity seems to follow you around the web? Do you ever wonder why you sometimes see a green lock with “https” in your address bar, and other times just plain “http”? EFF’s team of technologists and computer scientists can help. We engineer solutions to these problems of sneaky tracking, inconsistent encryption, and more. Our projects are released under free and open source licenses like the GNU General Public License or Creative Commons licenses, and we make them freely available to as many users as possible. Where users face threats to their free expression, privacy, and security online, EFF’s technology projects are there to defend them.