API Security Guide

I Completed Cisco's Introduction to Cybersecurity Course — Honest Review After Already Doing TryHackMe and PortSwigger By Amardeep Maroli  ·  June 25, 2026  ·  Cisco NetAcad, Certifications, Cybersecurity Learning  ·  13 min read Home About Contact I'll be upfront about the context in which I took this course: I completed it in June 2026, after I had already finished TryHackMe's Jr Penetration Tester path, found six bug bounty vulnerabilities on HackerOne, and built a home lab. For me, Cisco's Introduction to Cybersecurity was not an introduction — it was a review and a credential check. That context matters because my experience of this course is different from someone who takes it as their first exposure to cybersecurity. For a true beginner, it's a solid, free, well-structured course from one of the most credible names in networking. For someone with existing hands-on experience, i...

My MCA Final Year Project — I Built a Blockchain Identity System That Solves a Real Cybersecurity Problem By Amardeep Maroli  ·  June 23, 2026  ·  Capstone Project, Blockchain Security, Identity Management  ·  17 min read Home About Contact Every cybersecurity problem I've studied over the past year — data breaches, identity theft, Aadhaar fraud, social engineering scams — points back to the same architectural weakness: centralised identity systems that store sensitive data in one place, require you to over-share personal information just to prove something simple, and give you zero control over who has access to what. For my MCA final year capstone project at PES University, I decided to build something that addresses this problem directly. DIAM — Decentralized Identity and Access Management — is a blockchain-based identity system that gives users cryptographic control over their cre...

I Completed TryHackMe's Jr Penetration Tester Path — Every Room, Every Struggle, and What It Actually Teaches You By Amardeep Maroli  ·  June 21, 2026  ·  TryHackMe, Jr Penetration Tester, Personal Experience  ·  16 min read Home About Contact On March 7, 2026, I got a TryHackMe certificate notification that felt more significant than the others. I had earned the Jr Penetration Tester path completion certificate — the one that sits at the top of the beginner-to-intermediate bridge on TryHackMe, covering reconnaissance, exploitation, privilege escalation, and post-exploitation in a way that none of the introductory paths do. I had started with Pre Security on February 16, 2026 — meaning I completed three full learning paths in roughly three weeks alongside my MCA coursework. That pace was probably too aggressive for someone trying to absorb everything properly, and I'll be honest about ...