Surveillance Self-Defense

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Surveillance Self-Defense is a project of the Electronic Frontier Foundation, an independent non-profit working to protect online privacy for nearly thirty years. Surveillance Self-Defense is an expert guide to protecting you and your friends from online spying.

  • Read the BASICS to find out how online surveillance works.
  • Dive into TOOL GUIDES for instructions to installing secure applications.
  • More detailed information in the FURTHER LEARNING sections.
  • If you’d like a guided tour, look for the list of common SECURITY SCENARIOS.