How to Start a Career in Cybersecurity
There is no single path into cybersecurity — people arrive from IT, development, the military, help desks, and unrelated fields entirely. But there is a sensible starting sequence: build real foundations, practice on systems you are allowed to attack, and create a visible record of your ability. This article maps that sequence so you can start with direction instead of drift.
Build the foundations first#
Security sits on top of how computers actually work, so resist jumping straight to hacking tools:
- How systems work — operating systems (especially Linux), networking, and how the web works.
- A little code — enough scripting to automate and read others’ code.
- Core concepts — the ideas in our Fundamentals cluster: threat models, least privilege, the CIA triad.
Skipping this to run exploits produces shallow, brittle knowledge that falls apart the moment something is non-standard.
Practice legally, then prove it#
Once you have foundations, practice on systems built to be attacked — never on anything you do not own or have written permission to test:
- Legal practice platforms and CTFs for hands-on skills.
- A home lab you fully control.
- A portfolio — writeups, projects, a blog — that shows your thinking.
Starting a security career is a marathon of steady, legal practice. Explore the whole path from the Careers & Practice hub.
Frequently asked questions#
Do you need a degree to work in cybersecurity?
No. While some roles and employers prefer or require degrees, many security professionals enter through certifications, hands-on skills, demonstrated projects, and adjacent experience in IT or development. What matters most is provable ability — a portfolio, practical skills, and a track record — often more than a specific credential.
What should a complete beginner learn first?
Build the foundations before the flashy parts: how computers and networks work, an operating system (especially Linux) at the command line, basic scripting, and core security concepts. Then practice legally on platforms built for it. Trying to run exploits before understanding the fundamentals leads to shallow, brittle knowledge.