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EFF's software development and technology research projects aim to improve the rights of free expression, security, and privacy on the internet.

  • HTTPS Everywhere is a Firefox extension that makes Firefox use HTTPS to the greatest extent possible
  • The SSL Observatory is a view of the state of HTTPS deployment in the IPv4 address space
  • Switzerland detects violations of network neutrality
  • Panopticlick shows how easy it is to uniquely identify browsers
  • Privacy Badger blocks spying ads and invisible trackers.
  • Write to your representatives with democracy.io

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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.

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EFF exposed massive abuse of California's police databases. An @AP investigation reveals the problem is nationwide. https://www.eff.org/deeplinks...

Sep 28 @ 11:23am

EFF's @ncardozo explains the issue of overbroad government hacking to Congressional staffers.

Sep 28 @ 10:43am

Representative @Farenthold on the changes to Rule 41: "The Fourth Amendment is in jeopardy." Learn more at https://noglobalwarrants.org

Sep 28 @ 10:38am
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