Infosec

A hands-on, security-minded introduction to regular expressions - from simple matches to character classes, quantifiers, and real-world examples. Learn to wield regex like a precision tool for parsing, filtering, and hacking.

Day Five covers key AD admin tasks - user and group creation, GPO management, and domain joins—using PowerShell with a security-focused approach.

This post digs into Group Policy, Active Directory privileges, and built-in groups. I break down who has silent power, how attackers exploit User Rights, and what defenders can do to lock it down. Expect practical cheatsheets, tools, and battle-tested hardening tips.

This post digs into Active Directory user accounts, local vs. domain context, and why SYSTEM access is a bigger deal than you think. You’ll learn where users live, how machines act like users, and how attackers use this to map, move, and mischief.