Skip to content
Sudhir

Security work, written down.

Hey, I'm Sudhir, a CISSP-certified security professional in Mumbai. My work covers how large enterprises design, run, and audit their defenses.

Selected writing

All 12 posts
Apr 2026 Passing the CISSP at 100 Questions A practical breakdown of my CISSP preparation, resources, question practice, exam-day experience, and lessons learned. Read → Oct 2025 Recent Cisco Switch & Firewall Vulnerabilities Critical IOS XE vulnerabilities are being actively exploited, patch immediately. Click to read more Read → Sep 2025 Prompt Injection: The Silent Bug That Can Break LLM Models Chatbots and LLMs can follow instructions too well. Here's how malicious prompts bypass filters and what you can do Read → Sep 2025 iHackCTF 2025: How I Solved Some Challenges Writeup : my approach. Read →