Surveillance Self-Defense Tips, Tools and How-tos for Safer Online Communication A Project of the Electronic Frontier Foundation. We’re the Electronic Frontier Foundation, an independent non-profit working to protect online privacy for over thirty years. This is Surveillance Self-Defense: our expert guide to protecting you and your friends from online spying.

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