At EFF we spend a lot of time thinking about the tech used by police and authorities to spy on you while youβre going about your everyday life, like cell-site simulators (CSS). Rayhunter is an open source tool weβve created that we hope empowers everyone to help search out CSS around the world. https://www.eff.org/deeplinks/2025/03/meet-rayhunter-new-open-source-tool-eff-detect-cellular-spying
βIf you're being paid to use an app, chances are high that the app is harvesting and monetizing your personal data,β EFFβs Lena Cohen told WIRED. https://www.wired.com/story/no-the-freecash-app-wont-pay-you-to-scroll-tiktok/
We're honored to receive the Firefox Extension Developer Award for Privacy Badger. https://blog.mozilla.org/addons/2025/12/17/presenting-2025-firefox-extension-developer-award-recipients/
"Employers have a lot of latitude in the workplace to do video monitoring and really lots of different kinds of surveillance," EFFβs @htsuka@mastodon.online told CBS News β and some of that surveillance doesnβt get turned off when employees are off the clock. https://www.cbsnews.com/news/why-california-lawmakers-killed-workplace-surveillance-bill/
Though age verification mandates claim to protect children, in practice they create harmful censorship and surveillance regimes that put everyoneβadults and young people alikeβat risk. Donβt believe it? Learn more here: https://EFF.org/Age
βSanta Cruz got it right,β EFFβs Sarah Hamid told KQED News. βSanta Cruz joins nearly two dozen jurisdictions in 2025 that canceled or rejected Flock contracts by exercising procurement powerβlocal democracyβs most underutilized tool.β https://www.kqed.org/news/12069705/santa-cruz-the-first-in-california-to-terminate-its-contract-with-flock-safety
ICE is using a Palantir tool that uses Medicaid and other government data to stalk people for arrest, @404mediaco@mastodon.social reports. This is exactly the kind of data privacy abuse that EFF has been warning about. https://www.eff.org/deeplinks/2026/01/report-ice-using-palantir-tool-feeds-medicaid-data
EFF didnβt share the unredacted data because βour policy is not to release data of surveillance victims,β EFFβs Cara Gagliano told @404mediaco@mastodon.social. But Flockβs demands that web hosts take it down βare bogusβ¦ Itβs data obtained from public records.β
https://www.404media.co/police-unmask-millions-of-surveillance-targets-because-of-flock-redaction-error/
Locking down your phone, being mindful of what you're wearing, and coming up with plans to communicate with others are all key steps to take before attending a protest. https://ssd.eff.org/module/attending-protest
It can be hard to imagine how to defend oneself against an overwhelming force like ICE. But a few enterprising hackers have started projects to do counter-surveillance against ICE, and hopefully protect their communities through clever use of technology. https://www.eff.org/deeplinks/2026/01/how-hackers-are-fighting-back-against-ice