Rrathsarainrr-cyber.hashnode.dev·Sep 22 · 15 min readHiding Network Connections: Encryption, Onion Routing, and Identity SpoofingNetwork logs from an organisation's perimeter tell an analyst a great deal without capturing a single byte of payload: which hosts communicated, when, over which ports, for how long, and how much data00
Rrathsarainrr-cyber.hashnode.dev·Sep 18 · 15 min readWindows: Where Data Hides and How It's FoundA file called Secret.exe reports 25 bytes on disk. Nothing in Explorer, nothing in a standard dir listing, and nothing in Task Manager disagrees with that number. Run dir /r instead of dir, and the sa00
Rrathsarainrr-cyber.hashnode.dev·Sep 18 · 13 min readGNU/Linux: Where Data Hides and How It's FoundA filesystem can tell an investigator that everything is consistent while still leaving data outside the paths that ordinary tools inspect. Hidden filenames are the easy case. More interesting cases i00
Rrathsarainrr-cyber.hashnode.dev·Aug 14 · 31 min readUnderstanding OAuth 2.0: Delegation, Grant Types, and the Attacks That Actually HappenThe first time I heard the term OAuth, I didn't know what it meant. I was in a conversation with a DBA lead about something adjacent to authentication and authorization, and he mentioned, almost in pa00
Rrathsarainrr-cyber.hashnode.dev·Aug 6 · 15 min readIdentity Foundations: Everything Before OAuthBefore any protocol makes sense on its own terms, a few things underneath it need to be settled first: what authentication and authorization actually are as distinct concepts, how identity gets carrie13N
Rrathsarainrr-cyber.hashnode.dev·Aug 5 · 9 min readIdentity Was the Gap I Did Not Know I HadI had worked across cloud security engineering, vulnerability assessment, penetration testing, and application security. I had reviewed IAM configurations across multiple cloud platforms, flagged over31N
BPBhargav Patilincyberpub.hashnode.dev·Aug 2 · 3 min readThe File Systems in Operating Systems:What's a file System -: So in an Operating System,we perform numerous activities such as creating a file,deleting a file,editing and so on. So to store all these,we need a storage device,such as a S10
JUJAIMIN UMARANIYAinjaiminumaraniya.hashnode.dev·Jul 30 · 4 min readThe Complete Technical SEO Guide for React Applications By Jaimin Umaraniya (2026)Is React good for SEO? Yes, but only if you handle rendering, metadata, and performance correctly. Installing Next.js doesn't fix your SEO by itself. It just hands you more rendering options to choose10
Rrathsarainrr-cyber.hashnode.dev·Jul 22 · 9 min readEverything Passed. Then the End-to-End Ping Failed.I dedicated my final year project to an unsung hero. Stanislav Petrov, the Soviet lieutenant colonel who prevented nuclear war by deciding not to trust a system that told him it was certain. My superv10
Rrathsarainrr-cyber.hashnode.dev·Jul 19 · 8 min readI Built What I Thought Was a Secure App. Here's Everything I Got Wrong.During the final year of my undergraduate studies, my team submitted a cloud-based banking application as part of our Network and Cloud Security coursework. We had competition. Two other teams were bu10
