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Randomness 101: LavaRand in Production
As some of you may know, there's a wall of lava lamps in the lobby of our San Francisco office that we use for cryptography. In this post, we’re going to explore how that works.
Topics /
Security & Privacy
The most popular blog posts about security & privacy on Hacker News. 4,441 posts.
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Is curl|bash insecure?
Take control of your web by running your own personal cloud server with Sandstorm.
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iCloud Private Relay: What Cloudflare Customers Need to Know
iCloud Private Relay is an Apple service for browsing more privately and securely. Learn how to ensure the best user experience using iCloud Private Relay.
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Warrant Canary Frequently Asked Questions
What is a warrant canary? A warrant canary is a colloquial term for a regularly published statement that a service provider has not received legal process that it would be prohibited from saying it had received. Once a service provider does receive legal process, the speech prohibition goes into...
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Qwest CEO: NSA Punished Qwest for Refusing to Participate in Illegal Surveillance--Pre-9/11!
When Qwest refused the NSA’s illegal request that it hand over its customers’ data without a warrant, the NSA wasn’t happy. According to former Qwest CEO Joseph Nacchio, the government hit back for the telecom’s refusal by denying them lucrative contracts (log-in required) worth hundreds of...
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Yubico proposes WebAuthn protocol extension to simplify backup security keys
Yubico proposes a new WebAuthn extension to the World Wide Web Consortium (W3C) to add a user-friendly solution for backup security keys, and receives cryptographic proof from researchers at the Surrey Center for Cyber Security.
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WhatsApp's Signal Protocol integration is now complete
At Open Whisper Systems, our goal is to make private communication simple. A year ago, we announced a partnership with WhatsApp and committed to integrating the Signal Protocol into their product, moving towards full end-to-end encryption for all of their users by default. Over the past year, we...
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Private Access Tokens: eliminating CAPTCHAs on iPhones and Macs with open standards
Today we’re announcing Private Access Tokens, a completely invisible, private way to validate that real users are visiting your site
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A deep dive into an NSO zero-click iMessage exploit: Remote Code Execution
Posted by Ian Beer & Samuel Groß of Google Project Zero We want to thank Citizen Lab ...
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How To Create an SSH CA to Validate Hosts and Clients with Ubuntu
When dealing with an extensive infrastructure and many team members, managing SSH keys for authentication can become unwieldy. However, SSH can utilize cert…
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Sophos News - The Sophos Blog
The Sophos Blog
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Tracking Prevention in WebKit
WebKit has implemented tracking prevention technologies, spanning from 2003 with Safari 1.0 until today.
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Security of Passkeys in the Google Password Manager
Posted by Arnar Birgisson, Software Engineer We are excited to announce passkey support on Android and Chrome for developers to test today, ...
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Reproducible Signal builds for Android
As of our latest Android release, Signal builds are reproducible. Reproducible builds help to verify that the source code in our GitHub repository is the exact source code used to build the compiled Signal APK being distributed through Google Play.
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Grand jury subpoena for Signal user data, Eastern District of Virginia
In the “first half of 2016” (the most specific we’re permitted to be), we received a subpoena from the Eastern District of Virginia. The subpoena required us to provide information about two Signal users for a federal grand jury investigation. We’ve designed the Signal service to minimize the dat...
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Google and Android have your back by protecting your backups
Posted by Troy Kensinger, Technical Program Manager, Android Security and Privacy Android is all about choice. As such, Android strives to...
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Forensic Methodology Report: How to catch NSO Group’s Pegasus
NSO Group claims that its Pegasus spyware is only used to “investigate terrorism and crime” and “leaves no traces whatsoever”. This Forensic Methodology Report shows that neither of these statements are true. This report accompanies the release of the Pegasus Project, a collaborative investigation that involves more…
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Mitigating Spectre and Other Security Threats: The Cloudflare Workers Security Model
Cloudflare is a security company, and the heart of Workers is, in my view, a security project. Running code written by third parties is always a scary proposition, and the primary concern of the Workers team is to make that safe.
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Cloudflare Browser Check
Secure DNS Transport using DoH (DNS over HTTPS) or DoT (DNS over TLS) and SNI with ECH
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Verizon Injecting Perma-Cookies to Track Mobile Customers, Bypassing Privacy Controls
Verizon users might want to start looking for another provider. In an effort to better serve advertisers, Verizon Wireless has been silently modifying its users' web traffic on its network to inject a cookie-like tracker. This tracker, included in an HTTP header called X-UIDH, is sent to every...
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Google CEO Eric Schmidt Dismisses the Importance of Privacy
Yesterday, the web was buzzing with commentary about Google CEO Eric Schmidt's dangerous, dismissive response to concerns about search engine users' privacy. When asked during an interview for CNBC's recent "Inside the Mind of Google" special about whether users should be sharing information with...
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Meet Algo, the VPN that works
I think you’ll agree when I say: there’s no VPN option on the market designed with equal emphasis on security and ease of use. That changes now. Today we’re introducing Algo, a self-hosted personal VPN server designed for ease of deployment and security. Algo automatically deploys an on-demand VPN service in the cloud…
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Smashing the Stack for Fun and Profit by Aleph One
An excellent (if a bit dated) article/tutorial on exploiting buffer overflow vulnerabilities. It was written by Aleph One for Phrack 49.
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Intel's Management Engine
Recent CPUs from Intel requires a binary called the “Management Engine” (Intel ME, or ME for short). This binary is one of three parts required if a business elects to use Intel’s Active Management Technology (AMT), which Purism avoids. Purism laptops can function with a neutralized and disabled ME, as we have tested…
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Tarsnap - The scrypt key derivation function and encryption utility
The scrypt key derivation function and encryption utility
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Good-bye ESNI, hello ECH!
A deep dive into the Encrypted Client Hello, a standard that encrypts privacy-sensitive parameters sent by the client, as part of the TLS handshake.
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Privacy in Ubuntu 12.10: Amazon Ads and Data Leaks
See part 2 of Privacy in Ubuntu 12.10: Full Disk Encryption. Earlier this month the eagerly awaited free software operating system Ubuntu 12.10 was released, and it includes a slew of new features (YouTube link), some of which have infuriated users because of privacy concerns. Over the last couple...
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Flock Safety and Texas Sheriff Claimed License Plate Search Was for a Missing Person. It Was an Abortion Investigation.
New documents and court records obtained by EFF show that Texas deputies queried Flock Safety's surveillance data in an abortion investigation, contradicting the narrative promoted by the company and the Johnson County Sheriff that she was “being searched for as a missing person,” and that “it was about her safety.”…
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Apple Says iPhone Jailbreaking is Illegal
Jailbreaking an iPhone constitutes copyright infringement and a DMCA violation, says Apple in comments filed with the Copyright Office as part of the 2009 DMCA triennial rulemaking. This marks the first formal public statement by Apple about its legal stance on iPhone jailbreaking.Apple's iPhone,...