Modern technology has given those in power new abilities to eavesdrop and collect data on innocent people. Surveillance Self-Defense is EFF's guide to defending yourself and your friends from surveillance by using secure technology and developing careful practices.

Select an article from our index to learn about a tool or issue, or check out one of our playlists to take a guided tour through a new set of skills.


Understanding the basics: What digital surveillance is, and how you can fight it.


Step-by-step guides to help you install and use handy software and tools.


Detailed guides for specific situations.

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