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Google announces Sec-Gemini v1 a new experimental cybersecurity model
Today, we’re announcing Sec-Gemini v1, a new experimental AI model focused on advancing cybersecurity AI frontiers. As outlined a year ago, defenders face the daunting t…
Topics /
Security & Privacy
The most popular blog posts about security & privacy on Hacker News. 308 posts.
212
Detecting AI agent use and abuse
The key question is: Can you detect AI agent traffic on your application today? We tested multiple AI agent toolkits across high-traffic consumer sites, and the results were clear—legacy detection techniques (CAPTCHAs, IP blocking, user-agent filtering) are largely ineffective. Here’s what we found.
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The security paradox of local LLMs
Local LLMs prioritize privacy over security. Our research reveals a 95% backdoor injection success rate.
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Czech police forced to turn off facial recognition cameras at the Prague airport
The shutdown of the facial recognition cameras at the Václav Havel Airport in Prague came after years of criticism from EDRi member IuRe.
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The weaponization of travel blacklists
[A Federal Air Marshal (FAM) tasked with surveillance of an airline passenger targeted by Quiet Skies lists and/or rules followed the traveler out to the curb and recorded the license plate number of the vehicle in which she left the airport, so that her airline reservations could be integrated with license plate…
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Poison everywhere: No output from your MCP server is safe
Protect your organization with Idira®. Modernize identity governance, automate access reviews, and secure every identity across your hybrid cloud environment.
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How RubyGems.org protects OSS infrastructure
Recently, Socket.dev published research highlighting malicious gems designed to steal social media credentials. We wanted to use this as an opportunity to share more about how RubyGems.org security...
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OWASP Non-Human Identities Top 10
A list of OWASP's Non-Human Identities Top 10 risks for 2025
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Sam Altman Wants Your Eyeball
Last week, OpenAI's CEO Sam Altman announced in San Francisco that the World project he co-founded, formerly known as Worldcoin, is opening six stores across the United States, allowing users of the project's app to scan their eyeballs. This is worrisome, to say the least.
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The "Take It Down" Act
We've opposed the Take It Down Act because it could be easily manipulated to take down lawful content that powerful people simply don't like. Last night, President Trump demonstrated he has a similar view on the bill. He wants to sign the bill into law, then use it to remove content about — him....
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ESIM Security
In a result of its research investigation efforts, Security Explorations, a research lab of AG Security Research company, conducted security analysis of eSIM technology.
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The State of SSL Stacks
The SSL landscape has shifted dramatically. In this paper, we examine OpenSSL 3.x, BoringSSL, LibreSSL, WolfSSL, and AWS-LC with HAProxy.
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From MCP to shell: MCP auth flaws enable RCE in Claude Code, Gemini CLI and more
How MCP authentication flaws enable RCE in Claude Code, Gemini CLI, and more.
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Trust Me, I'm Local: Chrome Extensions, MCP, and the Sandbox Escape
Secure the modern software stack with Koi. Gain visibility, context, and real-time protection over extensions, MCPs, and autonomous AI agent endpoints.
229
Pump the Brakes on Your Police Department's Use of Flock Safety
Even if you can’t stop Flock’s use entirely, you can still help protect civil liberties in your community.
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Detect and crash Chromium bots
Disclaimer: If you're here for the holy grail of bot detection, this may not be it, unless your UX strategy involves surprise popups and your marketing strategy involves blocking Google crawlers. We recently stumbled across a bug on the Chromium bug tracker where a short JavaScript snippet can crash
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US Cloud soon illegal in EU? US punches first hole in EU-US Data Deal
Trump paralysed the "Privacy and Civil Liberties Oversight Board" (PCLOB), a key element of the EU-US data transfer deal that allows EU-US data flows.
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NT OS Kernel Information Disclosure Vulnerability
Bidding farewell to one of the last kernel address leaks, CVE-2025-53136. Even patches can open new doors for exploitation.
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RediShell: Critical remote code execution vulnerability in Redis
A 13‑year Redis flaw (CVE‑2025‑49844) allows attackers to escape Lua sandbox and run code on hosts. See Wiz Research’s analysis and mitigations.
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Bot or human? Creating an invisible Turing test for the internet
Behavioral and cognitive patterns distinguish humans from bots. Explore interactive demos and a practical framework for invisible Proof of Human.
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Detecting and countering misuse of AI
Anthropic's August 2025 threat intelligence report on AI cybercrime and other abuses.
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Mad at Meta? Don't Let Them Collect and Monetize Your Personal Data
If you’re fed up with Meta right now, you’re not alone. Meta tracks you across millions of websites and apps and its business model relies on your data. If you want to limit Meta’s ability to collect and profit from your personal data, here’s what you need to know.
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Is Germany on the brink of banning ad blockers?
Across the internet, users rely on browsers and extensions to shape how they experience the web: to protect their privacy, improve accessibility, block harmful or intrusive content, and take control ...
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Code execution through email: How I used Claude to hack itself
This is the story of how I used a Gmail message to trigger code execution through Claude Desktop, and how Claude itself (!) helped me plan the attack.
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PHP Core Security Audit Results
The PHP Foundation — Supporting, Advancing, and Developing the PHP Language
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Azure's Weakest Link? How API Connections Spill Secrets
Binary Security found the undocumented APIs for Azure API Connections. In this post we examine the inner workings of the Connections allowing us to escalate privileges and read secrets in backend resources for services ranging from Key Vaults, Storage Blobs, Defender ATP, to Enterprise Jira and SalesForce servers.