system hardening

OpenAI is locking down parts of ChatGPT to reduce data theft risks

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OpenAI is locking down parts of ChatGPT to reduce data theft risks 2026-06-08 at 13:09 By Anamarija Pogorelec OpenAI has started rolling out Lockdown Mode for ChatGPT, an optional security setting that restricts access to external resources and several product capabilities. It is available for personal accounts, including Free, Go, Plus, and Pro plans, as […]

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Linux developers weigh emergency “killswitch” for vulnerable kernel functions

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Linux developers weigh emergency “killswitch” for vulnerable kernel functions 2026-05-11 at 16:48 By Zeljka Zorz Linux kernel developers are reviewing a proposal for an emergency risk mitigation mechanism (“Killswitch”) that would allow administrators to disable vulnerable kernel functions at runtime. The proposal, submitted by Linux kernel developer/maintainer Sasha Levin, arrives in the wake of the

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OpenGuardrails: A new open-source model aims to make AI safer for real-world use

Artificial Intelligence, CISO, cybersecurity, Don't miss, Features, GitHub, Hexnode, Hot stuff, InfluxData, LLMs, News, open source, system hardening /

OpenGuardrails: A new open-source model aims to make AI safer for real-world use 2025-11-06 at 10:28 By Mirko Zorz When you ask a large language model to summarize a policy or write code, you probably assume it will behave safely. But what happens when someone tries to trick it into leaking data or generating harmful

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Linux Kernel Runtime Guard hits 1.0.0 with major updates and broader support

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Linux Kernel Runtime Guard hits 1.0.0 with major updates and broader support 2025-09-08 at 09:52 By Sinisa Markovic The Linux Kernel Runtime Guard (LKRG) is a kernel module that checks the Linux kernel while it’s running. It looks for signs of tampering and tries to catch attempts to exploit security flaws in the kernel. Because

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