The direct answer
Blue team defends - monitoring, detecting, and responding to attacks on an organisation's systems. Red team attacks - simulating real adversaries, with permission, to find weaknesses before genuine attackers do. They're two sides of the same job (making an organisation more secure) approached from opposite directions, and most people entering the field should start on blue team, because that's where the bulk of entry-level roles actually are.
I get asked this constantly by students who've watched pentesting content online and assumed that's "real" cyber security while defensive work is somehow secondary. It isn't. Blue team roles like SOC analyst vastly outnumber red team roles in the UK job market, especially at entry level, and blue team experience is often what gets you taken seriously for red team work later anyway.
Side-by-side comparison
| Blue Team | Red Team | |
|---|---|---|
| Core activity | Monitor, detect, respond, defend | Simulate attacks, find and report weaknesses |
| Typical entry role | SOC Analyst (Tier 1) | Rarely entry-level - usually requires prior IT/security experience |
| Day-to-day tools | SIEM, EDR, ticketing systems | Penetration testing frameworks, exploit tools, reporting |
| Common certifications | CompTIA Security+, BTL1 | OSCP, CREST, CHECK (UK-specific scheme) |
| Entry-level job volume in the UK | High | Low - most red team roles require 2+ years' prior experience |
| Typical work pattern | Often includes shift/rota coverage for 24/7 SOCs | Project-based, engagement to engagement |
What I tell my students
Almost every student who comes to me wanting to "get into hacking" actually means red team work, and almost none of them can get hired directly into it. There are very few genuinely entry-level red team roles in the UK - most penetration testing jobs expect you to already understand networks, systems, and often have some blue team or general IT background first, precisely because you need to know what "normal" and "secure" look like before you can convincingly attack it.
My honest advice: start blue team. Get a SOC analyst role (see how to become a SOC analyst in the UK), spend a year or two genuinely understanding how networks, logs, and detection work from the defensive side, then move towards red team work if it still appeals once you know the reality of both. Plenty of the best penetration testers I know started exactly this way. Going straight for red team content without that foundation usually means a lot of expensive courses and no job offers, because employers can tell the difference between someone who's watched hacking videos and someone who genuinely understands how systems work.
Which one should you actually pick? A quick self-check
- Do you enjoy investigation and pattern recognition more than building/breaking things? → Blue team.
- Are you comfortable with process-heavy, sometimes repetitive work in exchange for role availability? → Blue team.
- Do you already have solid IT/networking experience and want to specialise in offensive testing? → Red team is a realistic next step, not a first step.
- Are you drawn to red team purely from online hacking content, with no IT background yet? → Start blue team first and build the fundamentals.
- Do you want the widest range of entry-level job openings right now? → Blue team, without question.
There's also a growing "purple team" middle ground - people who work across both, feeding red team findings back into blue team detection rules - but that's a role you grow into with experience on one side first, not a starting point.
What the roles actually look like week to week
Blue team (SOC analyst) work is covered in detail in what does a SOC analyst do - broadly, alert triage, log investigation, and documentation, often with shift coverage. Red team work is project-based: an engagement might run for one to four weeks, involves scoping with a client, active testing (often working outside normal collaboration with the target's own security team, by design), and ends with a detailed report and sometimes a presentation of findings. It's less routine than SOC work, but far less predictable in terms of workload and travel.
If you want help figuring out which side actually fits your working style and background before you commit study time to either, check pricing and we'll talk it through properly.
FAQ
Which pays more, blue team or red team?
Senior red team/penetration testing roles can pay more than equivalent blue team roles, partly reflecting the smaller talent pool and specialist certifications like OSCP. At entry level the gap is less clear-cut, and blue team has far more available roles.
Can I go straight into red team as a first job?
It's rare in the UK. Most entry-level security hiring is blue team (SOC analyst), and most penetration testing roles expect prior IT or security experience first.
What is purple team?
It's a working style rather than a separate job title in most companies - blue and red teams collaborating, with red team findings directly informing blue team detection rules. You typically move into purple team work after experience on one side.
Do I need different certifications for each path?
Broadly yes. Blue team paths often start with Security+ and tools like a SIEM; red team paths lean towards certifications like OSCP later in a career, usually after blue team or general IT foundations are in place.
