TryHackme’s Advent of Cyber 2023 — Day 12 Writeup

Defence in depth Sleighing Threats, One Layer at a Time

Learning Objectives

- Defence in Depth

- Basic Endpoint Hardening

-Simple Boot2Root Methodology

Creating robust defense doesn’t require flamboyance. Significant progress can be achieved through concise one-liners and straightforward implementation of security best practices. This approach underscores our strategy throughout this task, where we systematically address specific vulnerabilities, showcasing the effectiveness of simplicity.

This task serves as a practical illustration of real-world application. With each hardening step, a new layer of defense is added, forming a cohesive shield against potential threats. Even if one or two layers are compromised, the subsequent ones stand ready to thwart malicious intentions, reinforcing the overall defensibility.

The concept of defense in depth extends beyond these layers. The subsequent phase involves deploying tools and sensors that empower defensive teams with comprehensive visibility into the environment. The data generated serves as the foundation for developing automated detection mechanisms to identify and counter suspicious activities. However, delving into this topic requires a…