Zaakir.io

My thoughts

Karpathy's LLM Primer, Reread in 2026

A close re-reading of Andrej Karpathy's "[1hr Talk] Intro to Large Language Models" — what the foundational ideas were, what aged spectacularly well, and why this 2023 talk is still the first thing I'd hand someone in 2026.

LLMs, AI, Inference

Bug Bounty Hunting Methodology

A methodology for starting out in bug bounty hunting

Bug Bounty

Setting up a Bug Bounty VPS

How to setup a VPS for bug bounty hunting

Bug Bounty

From PHP Upload Bypass to KeePass Cracking

Two techniques worth remembering from TryHackMe's Opacity — bypassing PHP upload filters with a fragment character, and cracking .kdbx files with keepass2john + john.

THM, Web, Password Cracking

Hijacking Spring Boot Sessions via /actuator

How an exposed /actuator/sessions endpoint on the HTB CozyHosting box turns into a full authentication bypass — and a refresher on the sudo ssh GTFObin.

HTB, Spring Boot, Web