Online Behavioral Tracking

Who knows what you're doing when you browse the web?

New web technology has created many unexpected ways for corporations to track your web activity without your knowledge. Countless advertising networks are able to secretly monitor you across multiple websites and build detailed profiles of your behavior and interests.

New threats include "super-cookies " like Adobe's "Local Shared Objects" and Microsoft's "User Data Persistence." They include semi-legal data-sharing agreements between Internet service providers and data warehouses like Phorm and NebuAd. And they include social networking websites that allow advertisers too much access to their users' behavior and data.

EFF is working with lawmakers to close legal loopholes that enable unscrupulous tracking with corporations to teach them how to manage data responsibly and with the media to educate the public about corporate behavior and user rights.

Stay in Touch

NSA Spying

EFF is leading the fight against the NSA's illegal mass surveillance program. Learn more about what the program is, how it works, and what you can do.

Follow EFF

Brasil: #PLEspião ameaça liberdade na internet

Oct 13 @ 3:30pm

Celebrate Lovelace day by applying for a paid EFF internship—because we need more diverse technologists everywhere

Oct 13 @ 2:53pm

The JPEG format succeeded because it was free, open, and interoperable. Why ruin a good thing with DRM?

Oct 13 @ 12:38pm
JavaScript license information