Surveillance Self-Defense: 2025 Year in Review

Our Surveillance Self-Defense (SSD) guides, which provide practical advice and explainers for how to deal with government and corporate surveillance, had a big year. We published several large updates to existing guides and released three all new guides. And with frequent massive protests across the U.S., our guide to attending a protest remained one of the most popular guides of the year, so we made sure our translations were up to date. (Re)learn All You Need to Know About Encryption We started this year by taking a deep look at our various encryption guides, which start with the basics before moving up to deeper concepts. We slimmed each guide down and tried to focus on making them as clear and concise as deep explainers on complicated topics can be. We reviewed and edited four guides in total: What Should I Know About Encryption? Key Concepts in Encryption Key Verification A Deep Dive on End-to-End Encryption: How Do Public Key Encryption Systems Work? And if you’re not sure where