Cybersecurity Tech Brief By HackerNoon

Cybersecurity Tech Brief By HackerNoon

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Cybersecurity Tech Brief By HackerNoon episodes

  • Why I Built a Password Manager That Never Touches the Cloud

    This story was originally published on HackerNoon at: https://hackernoon.com/why-i-built-a-password-manager-that-never-touches-the-cloud.


    Kryptix removes accounts, telemetry, and cloud sync from password management while offering encrypted backups, biometrics, and auditable code.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #passwords, #security, #data-security, #password-security, #offline, #react-native, #password-manager, #data-privacy, and more.


    This story was written by: @nima01. Learn more about this writer by checking @nima01's about page,
    and for more stories, please visit hackernoon.com.


    Kryptix removes accounts, telemetry, and cloud sync from password management while offering encrypted backups, biometrics, and auditable code.

    6 min
  • Inside Xalgorix: An AI Pentester Built Around Exploit Verification

    This story was originally published on HackerNoon at: https://hackernoon.com/inside-xalgorix-an-ai-pentester-built-around-exploit-verification.


    Xalgorix is an open-source AI pentester that separates vulnerability discovery from independent exploit verification.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #cybersecurity, #devsecops, #open-source, #penetration-testing, #application-security, #security-testing, #artificial-intelligence, #ai-agents, and more.


    This story was written by: @xalgord. Learn more about this writer by checking @xalgord's about page,
    and for more stories, please visit hackernoon.com.


    Xalgorix is an open-source, self-hosted AI pentester whose independent verifier re-exploits candidate findings before they are reported.

    6 min
  • When an Expired Domain Becomes a Security Problem

    This story was originally published on HackerNoon at: https://hackernoon.com/when-an-expired-domain-becomes-a-security-problem.


    Old domains can retain backlinks, references, integrations and digital history long after their original owners stop using them.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #cybersecurity, #infosec, #web-security, #dns, #web-domains, #expired-domains, #domain-security, #cybersecurity-awareness, and more.


    This story was written by: @cyberbezpieczenstwo. Learn more about this writer by checking @cyberbezpieczenstwo's about page,
    and for more stories, please visit hackernoon.com.


    Expired domains aren't just an SEO asset — they can become a cybersecurity risk. Old domains may still be referenced in documentation, DNS, email systems, APIs and external websites. If someone else registers the domain, that forgotten digital footprint can potentially be abused.
    Organizations should treat domain retirement as part of their security lifecycle and audit dependencies before allowing a domain to expire.

    6 min
  • 62 Blog Posts To Learn About Network

    This story was originally published on HackerNoon at: https://hackernoon.com/62-blog-posts-to-learn-about-network.


    Learn everything you need to know about Network via these 62 free HackerNoon blog posts.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #network, #learn, #learn-network, and more.


    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.

    18 min
  • Claude Code Hooks: How to Stop AI Agents From Breaking Your Code

    This story was originally published on HackerNoon at: https://hackernoon.com/claude-code-hooks-how-to-stop-ai-agents-from-breaking-your-code.


    Learn how Claude Code hooks create deterministic guardrails that block dangerous commands and verify AI-generated code before problems ship.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #cybersecurity, #docker, #large-language-models, #programming, #api, #artificial-intelligence, #claude-code-hooks, #good-company, and more.


    This story was written by: @sonarsource. Learn more about this writer by checking @sonarsource's about page,
    and for more stories, please visit hackernoon.com.


    Learn how Claude Code hooks create deterministic guardrails that block dangerous commands and verify AI-generated code before problems ship.

    19 min
  • Prompt Injection Is Now an RCE Primitive

    This story was originally published on HackerNoon at: https://hackernoon.com/prompt-injection-is-now-an-rce-primitive.


    When AI controls tools, prompt injection becomes execution risk. Map primitives, remove authority, isolate runtimes, validate inputs, and monitor hosts.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #ai-security, #prompt-injection, #rce, #ai-agents, #ai-agent-security, #semantic-kernel, #runtime-isolation, #hackernoon-top-story, and more.


    This story was written by: @superorange0707. Learn more about this writer by checking @superorange0707's about page,
    and for more stories, please visit hackernoon.com.


    The article argues that prompt injection in tool-using agents should be treated as an execution-path problem, not just a content-filtering problem.
    Its core recommendation is to map every untrusted input source to the tools, primitives, credentials, filesystem paths, and network destinations it can reach, then break those paths with least privilege, typed tool design, sandboxing, scoped credentials, approval gates, and host-level monitoring.

    10 min
  • Name It, Frame It, Check It: A 3-Step Fix for Phishing

    This story was originally published on HackerNoon at: https://hackernoon.com/name-it-frame-it-check-it-a-3-step-fix-for-phishing.


    Why do employees still fall for phishing after security training? A cognitive security experiment explores how objective thinking may reduce risk.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #security, #social-engineering, #phishing, #social-engineering-attacks, #social-engineering-tricks, #phishing-email, #prevent-phishing, #how-to-prevent-phishing, and more.


    This story was written by: @leah-zitter. Learn more about this writer by checking @leah-zitter's about page,
    and for more stories, please visit hackernoon.com.


    Why do employees still fall for phishing after security training? A cognitive security experiment explores how objective thinking may reduce risk.

    6 min
  • Why You Should Stay Away From Free VPNs (and Use ApexGuard Instead)

    This story was originally published on HackerNoon at: https://hackernoon.com/why-you-should-stay-away-from-free-vpns-and-use-apexguard-instead.


    Free VPNs can come with slow speeds, data caps, ads, and tracking. Learn what to check before trusting a VPN with your internet traffic.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #vpn, #apexguard, #free-vpn-safety, #vpn-data-privacy, #vpn-speed-limits, #vpn-logging, #ram-servers-vpn, #good-company, and more.


    This story was written by: @nicafurs. Learn more about this writer by checking @nicafurs's about page,
    and for more stories, please visit hackernoon.com.


    Free VPNs can come with slow speeds, data caps, ads, and tracking. Learn what to check before trusting a VPN with your internet traffic.

    9 min
  • How an AutoGPT Email Block Became an SSRF Surface

    This story was originally published on HackerNoon at: https://hackernoon.com/how-an-autogpt-email-block-became-an-ssrf-surface.


    CVE-2026-33234 let authenticated AutoGPT users scan internal networks and leak SSH banners through its unprotected SMTP connection path.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #cybersecurity, #cve, #autogpt, #ai-and-ml, #ai-security, #network-security, #vulnerability, #pavan-nallamothu, and more.


    This story was written by: @pavanchow. Learn more about this writer by checking @pavanchow's about page,
    and for more stories, please visit hackernoon.com.


    AutoGPT enforces strict SSRF protections on its HTTP layer. But the SendEmailBlock uses Python's smtplib to open raw TCP sockets, bypassing the blocklist entirely. Pointing this block at internal SSH or Redis ports forces smtplib to throw an exception that leaks the service banner directly in the API response. Authenticated users can map the internal network and identify vulnerable services from a single text field. Fixed in backend 0.6.52 by extending IP validation to all outbound protocols.

    7 min
  • SecurityMetrics Wins Cybersecurity Audit Team of the Year from the Hacker News

    This story was originally published on HackerNoon at: https://hackernoon.com/securitymetrics-wins-cybersecurity-audit-team-of-the-year-from-the-hacker-news.


    SecurityMetrics' has won Cybersecurity Audit Team of the year from the Hacker News.
    Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity.
    You can also check exclusive content about #compliance, #cybersecurity, #audit, #award, #pci-compliance, #pci-dss, #business, #good-company, and more.


    This story was written by: @pr-securitymetrics. Learn more about this writer by checking @pr-securitymetrics's about page,
    and for more stories, please visit hackernoon.com.


    SecurityMetrics' Audit team has won the Cybersecurity Audit Team of the Year award from the Hacker News. This award highlights the Audit team's expertise and commitment to streamlining the compliance process for their clients.

    5 min

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