This story was originally published on HackerNoon at: https://hackernoon.com/103-blog-posts-to-learn-about-network-security.
Learn everything you need to know about Network Security via these 103 free HackerNoon blog posts.
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This story was written by: @learn. Learn more about this writer by checking @learn's about page, and for more stories, please visit hackernoon.com.

This story was originally published on HackerNoon at: https://hackernoon.com/500-blog-posts-to-learn-about-privacy.
Learn everything you need to know about Privacy via these 500 free HackerNoon blog posts.
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This story was originally published on HackerNoon at: https://hackernoon.com/why-google-is-replacing-rsa-with-ecdsa-and-why-it-isnt-about-quantum.
Google Trust Services shifts some Google services to ECDSA leaf certificates by default in Q2 2026. Classical cleanup, not PQC: how TLS migrates in layers.
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This story was written by: @0xlooptheory. Learn more about this writer by checking @0xlooptheory's about page, and for more stories, please visit hackernoon.com.

Google Trust Services announced that a number of Google services will move from RSA to ECDSA leaf certificates by default in Q2 2026. ECDSA is not quantum-safe; under standard resource estimates it falls to a smaller quantum computer than RSA-2048. The move still makes sense: TLS migrates in layers, post-quantum key exchange is already the default in major browsers, and certificate migration is blocked on signature sizes and ecosystem constraints that Google plans to address with Merkle Tree Certificates against a stated 2029 timeline.

This story was originally published on HackerNoon at: https://hackernoon.com/frontier-model-access-chinas-chip-substitution-and-the-power-bottleneck-reframe-the-ai-stack.
AI geopolitics is shifting due to controlled frontier model access, China's pivot to domestic AI chips amid export controls, and rising electricity demands s...
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This story was written by: @ttassos. Learn more about this writer by checking @ttassos's about page, and for more stories, please visit hackernoon.com.

AI geopolitics is shifting due to controlled frontier model access.

This story was originally published on HackerNoon at: https://hackernoon.com/205-blog-posts-to-learn-about-vpn.
Learn everything you need to know about Vpn via these 205 free HackerNoon blog posts.
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This story was originally published on HackerNoon at: https://hackernoon.com/nvidia-china-chip-curbs-accelerate-domestic-ai-substitution.
China is accelerating AI chip substitution while the U.S. intensifies control over frontier AI model access.
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This story was written by: @ttassos. Learn more about this writer by checking @ttassos's about page, and for more stories, please visit hackernoon.com.

China is accelerating AI chip substitution while the U.S. intensifies control over frontier AI model access.

This story was originally published on HackerNoon at: https://hackernoon.com/how-to-secure-a-multi-site-business-network-against-modern-cyber-threats.
Learn the network security best practices that protect multi-site businesses with segmentation, zero trust, firewalls, secure remote access, and monitoring.
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Modern businesses face cyber threats across branch offices, cloud environments, and remote teams. This guide explains how to build secure network infrastructure using segmentation, next-generation firewalls, zero trust access, secure connectivity, identity management, and continuous monitoring. It also outlines a phased roadmap for strengthening multi-site network security without disrupting operations.

This story was originally published on HackerNoon at: https://hackernoon.com/87percent-of-companies-were-hit-by-an-ai-cyber-attack-the-fix-is-a-skills-problem-not-a-headcount-one.
AI-driven attacks hit 87% of organizations last year. Why the cybersecurity bottleneck is now skills, not headcount and how AI security became its own discipl
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Cybercrime is on track to cost $10.5T a year; 87% of organizations were hit by an AI-driven attack in the past year, and only about 26% feel confident they can detect one. The binding constraint is people, not tools. In 2025, ISC2 stopped publishing its long-running "4.7M-person workforce gap" and reframed the problem as skills: 95% of teams report a gap and AI is the #1 most-needed skill (41%), for the second year running. AI security is professionalizing into its own discipline. CompTIA's SecAI+ (launched Feb 2026) is the first certification built solely for it — weighted 40% toward hands-on defense of AI systems, not theory. The under-covered frontier is insider / "shadow AI" risk — staff pasting sensitive data into AI tools — which CIAT's Brad Smith flags as a top challenge alongside AI-powered phishing. Employers want "force multipliers," not replacements; the durable skill is the dual ability to defend AI systems and deploy AI defensively, with the governance literacy to manage the risk. Cybercrime is on track to cost $10.5T a year; 87% of organizations were hit by an AI-driven attack in the past year, and only about 26% feel confident they can detect one. The binding constraint is people, not tools. In 2025, ISC2 stopped publishing its long-running "4.7-million-person workforce gap" and reframed the problem as skills — 95% of teams report a gap, and AI is the #1 most-needed skill (41%). AI security is professionalizing into its own discipline: CompTIA's SecAI+ (Feb 2026) is the first certification built solely for it, weighted 40% toward hands-on defense of AI systems. The under-covered frontier is insider / "shadow AI" risk — staff pasting sensitive data into AI tools — which CIAT's Brad Smith flags as a top challenge alongside AI-powered phishing. Employers want force multipliers, not replacements: the durable skill is defending AI systems and deploying AI defensively, with the governance literacy to manage the risk.