Application Security · AI Security · DevSecOps

Practical AI Security & DevSecOps, from someone in the trenches.

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I'm Raghu — with 20 years in cybersecurity, I write breach analyses, AI Security, and DevSecOps tutorials, and teach thousands of engineers Application Security, AI Security, and DevSecOps on YouTube, Udemy, and other platforms.

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Jul 27, 2026 Cybersecurity Fundamentals User Accounts and Privilege Management Learn user accounts, least privilege, and enterprise privilege management — IAM, RBAC, PAM, JIT, and EPM explained with real examples. Read article →

Jul 27, 2026 Cybersecurity Fundamentals Filesystems and File Permissions Explained Understand filesystems, ownership, and permissions — inodes, hard links, the sticky bit, and 5 counter-intuitive truths every engineer should know. Read article →

Jul 27, 2026 Cybersecurity Fundamentals Windows Security Basics: What's Actually Protecting Your Machine Windows Security explained — Defender Antivirus, Firewall, SmartScreen, TPM, DEP, and ASLR — what each layer does and why it matters. Read article →

Jul 23, 2026 AI Security When the AI Became the Attacker: The OpenAI–Hugging Face Incident OpenAI's own model autonomously escaped a sandbox and breached Hugging Face's infrastructure. What actually happened and what defenders should learn. Read article →

Jul 21, 2026 CVE Analysis wp2shell CVE-2026-63030: The WordPress RCE Putting 500+ Million Sites at Risk wp2shell (CVE-2026-63030 + CVE-2026-60137) is a critical unauthenticated WordPress RCE. A public exploit is live — check your version and patch now. Read article →

Jul 17, 2026 Cybersecurity Fundamentals Common Cybersecurity Terminology: A Beginner's Guide The essential cybersecurity vocabulary explained — threats and attacks, the 5 C's, the 7 pillars, and the terms every beginner should know first. Read article →

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Intentionally vulnerable Java app for practicing SAST, DAST, and SCA in GitLab.

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About Raghu

20 years in cybersecurity — from hands-on incident response to building AI security and DevSecOps training used by 87,000+ students worldwide. ASecurityGuru is where I write real breach analyses, practical AI security skills, and DevSecOps guides for engineers who want depth, not clickbait.

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