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Security

Computer security and the lack of computer security is a fundamental issue that underpins much of how the Internet does (and doesn't) function. Many of the policy issues that EFF works on are linked to security in deep ways including privacy and anonymity, DRM, censorship, and network neutrality.

EFF works directly on a wide range of security issues including increased deployment of cryptographic protocols through projects likeCertbot; improving the security of those protocols; offering legal assistance to researchers through ourCoders' Rights Project; offering practical security advice to activists through thesurveillance self-defense project; and working on the development of new security standards.

Security Highlights

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Encrypting the Web

The web has largely switched from non-secure HTTP to the more secure HTTPS protocol. All web servers use one of these two protocols to get web pages from the server to your browser. HTTP has serious problems that make it vulnerable to eavesdropping and content hijacking. HTTPS fixes most of...
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Surveillance Self-Defense

Description: 
Surveillance Self-Defense is EFF's online guide to defending yourself and your friends from surveillance by using secure technology and developing careful practices.

Coders' Rights Project

EFF's Coders' Rights Project protects programmers and developers engaged in cutting-edge exploration of technology. Security and encryption researchers help build a safer future for all of us using digital technologies, but too many legitimate researchers face serious legal challenges that prevent or inhibit their work. These challenges come from laws...

Security Updates

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Cybersecurity Community Must Not Remain Silent On Executive Order Attacking Former CISA Director

Cybersecurity professionals and the infosec community have essential roles to play in protecting our democracy, securing our elections, and building, testing, and safeguarding government infrastructure. It is critically important for us to speak up to ensure that essential work continues and that those engaged in these good faith efforts are...

Deeplinks Blog byAlexis Hancock | April 10, 2025

Certbot 4.0: Long Live Short-Lived Certs!

When Let’s Encrypt, a free certificate authority,started issuing 90 day TLS certificates for websites, it was considered a bold move that helped push the ecosystem towards shorter certificate life times. Beforehand, certificate authorities normally issued certificate lifetimes lasting a year or more. With4.0,...

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Deeplinks Blog byRory Mir | April 3, 2025

Calyx Institute: A Case Study in Grassroots Innovation

Technologists play a huge role in building alternative tools and resources when our right to privacy and security are undermined by governments and major corporations. This direct resistance ensures that even in the face of powerful adversaries, communities can find some safety and autonomy through community-built tools.One of the most...

Deeplinks Blog byJoe Mullin | April 2, 2025

Site-Blocking Legislation Is Back. It’s Still a Terrible Idea.

More than a decade ago, Congresstried to pass SOPA and PIPA—two sweeping bills that would have allowed the government and copyright holders to quickly shut down entire websites based on allegations of piracy. The backlash was immediate and massive. Internet users, free speech advocates, and tech companies flooded...

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Simple Phish Bait: EFF Is Not Investigating Your Albion Online Forum Account

We recently learned that users of the Albion Onlinegaming forum have received direct messages purporting to be from us. That message, which leverages the fear of an account ban, is a phishing attempt.If you’re an Albion Online forum user and receive a message that claims to be from...

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