Technical writeups, investigations and lessons learned.
A source-grounded reconstruction of the 2015 Bundestag intrusion attributed to APT28 — mapping the public record to MITRE ATT&CK, then replicating the delivery, lateral movement, C2, and collection mechanisms in an isolated lab to surface real detection gaps.
Why hashing is the silent protector of digital trust — how it secures passwords, powers digital signatures, underpins Windows credential storage, and why hash collisions matter.
How secret keys keep your data safe online — the difference between symmetric and asymmetric encryption, where each is used, and where encryption shows up in everyday life.
A simple guide for aspiring SOC analysts to the four goals cryptography enables — confidentiality, integrity, authentication, and non-repudiation — and the three types that make it possible.
Where Zero Trust goes next: AI-driven behavior analysis, adaptive authentication, cloud-everywhere protection, quantum-safe encryption, and the cultural shift beyond IT.
Seven scenarios — ransomware, insider threats, cloud misconfigurations, remote work, supply chain attacks, critical infrastructure, and phishing — showing what Zero Trust changes in practice.
A practical guide to moving Zero Trust from theory to real-world security — the five core implementation steps, the tools that enable each pillar, and best practices for a smooth rollout.
Breaking down the six core pillars that make Zero Trust actually work: identity, least privilege, device health, micro-segmentation, monitoring, and data-centric security.
Why the old perimeter security model — firewalls, VPNs, and trust once you're inside — no longer holds up, and how Zero Trust Architecture replaces it.
What DHCP is, why it matters at enterprise scale, how the DORA process actually works message by message, and how DHCP starvation attacks abuse it.
A breakdown of what phishing actually is, the many forms it takes beyond email, and the practical steps individuals and SOC teams use to catch it early.
The foundational model behind almost every security decision — Confidentiality, Integrity, and Availability, each with its opposite failure state and the common techniques used to maintain it.
How the TCP/IP Model's four layers map to the OSI Model's seven — and why this practical, DARPA-built framework became the real backbone of the internet while OSI stayed largely theoretical.
A walkthrough of the NIST-outlined Incident Response Lifecycle — the six phases from preparation through post-incident activity that let defenders detect, contain, eradicate, and recover from a cyber-attack.
A layer-by-layer breakdown of the OSI Model's seven layers — what each one does, the protocols that live there, and the common attacks that target them.
A breakdown of what a Security Operations Center actually does — who's on the team, the roles from L1 analyst to SOC manager, and what it means to be responsible for defending an organization's digital infrastructure.
A breakdown of the Cyber Kill Chain framework — the seven stages Lockheed Martin introduced in 2011 to identify and mitigate attacks, from reconnaissance through to actions on objectives.