Security Beginner

Privacy & Personal Security

Start with yourself: which breaches has your email turned up in?

Privacy & Personal Security

A separate strong password for every account, with an open-source manager.

Privacy & Personal Security

Threat modelling and tool choice: the map of personal security.

Networking & Sysadmin

Most security tooling runs on Linux: the command line and the file system.

CTF & Hands-on Labs

Linux, reinforced as a game: the Bandit levels over SSH.

Networking & Sysadmin

Networking and security basics in free videos, following the Security+ syllabus.

Networking & Sysadmin

Seeing what really crosses the network, packet by packet.

CTF & Hands-on Labs

Guided first attack and defence rooms on ready-made machines in the browser.

CTF & Hands-on Labs

Web vulnerabilities one at a time, each with a free lab: SQLi, XSS, SSRF.

CTF & Hands-on Labs

Trying what you learned on a deliberately vulnerable shop on your own machine.

Practice & Challenges

Learning cryptography by breaking it, from encodings to RSA mistakes.

Offence, Defence & OSINT

The reference to open when stuck: an encyclopaedia of techniques.

CTF & Hands-on Labs

When you are ready: upcoming CTF competitions and teams.

Certification & Career

Career direction: which certification fits which field and level.