Awareness

Red Team vs Blue Team vs Purple Team: Which to Choose

Eng. Donya Bino Published  ·  14 min read

You have heard the terms thrown around at security conferences and in vendor pitches. Red team finds vulnerabilities. Blue team defends. Purple team does both.

But you run a real business with a real budget and real security problems. You cannot hire all three. You need to know which one actually helps you right now.

Here is the honest answer. Most organizations do not need a red team. Many are not ready for a purple team. Almost every organization needs to build its blue team first.

Let me explain what each team actually does and help you decide where to invest your limited resources. If you are unsure about costs, use Red Secure Tech's instant cost calculator to get pricing tailored to your specific security testing needs.

What Each Team Actually Does

Before you can choose, you need to understand the difference.

Red Team: The Attackers

A red team acts like a real adversary. Their job is to breach your defenses using any means necessary. They do not just scan for vulnerabilities. They phish your employees, try to walk into your building, exploit your web applications, and attempt to steal your most sensitive data.

They operate silently. Your blue team may not know they are being tested. The goal is to answer one question: could a determined attacker compromise your organization.

Red teams are expensive. They require highly skilled operators who think like criminals. A single red team engagement can cost £20,000 to £100,000 or more. You can estimate your specific penetration testing costs using Red Secure Tech's calculator.

Blue Team: The Defenders

A blue team protects your organization. They monitor logs, respond to alerts, configure firewalls, patch systems, and investigate suspicious activity. They are your security operations center, your incident response team, and your vulnerability management program.

Blue team work never stops. Attacks happen every day, so the blue team works every day. The goal is to detect, respond to, and recover from security incidents as quickly as possible.

Blue teams are not optional. Every organization needs defensive security capabilities. The only question is whether you build them internally or outsource to a managed security service provider.

Purple Team: The Collaborators

A purple team is not a separate team. It is a collaboration model where red and blue teams work together. Blue learns to detect the tactics used by Red, the goal is not to win or lose but to build up Blue's security capabilities.

Purple team activities tend to be shorter and cheaper than complete red team engagements; they are done so that specific attack scenarios can be focused upon and measurable improvements can be made to your security monitoring system.

Now let me help you decide which one you need.

Start Here: Assess Your Security Maturity

Your organization falls into one of these three maturity levels. Be honest with yourself.

Level 1: No dedicated security function.

You have no one monitoring logs. Your firewall has default settings. You are not sure if you would know if you were hacked. Patches are applied whenever someone remembers.

You are not ready for any team. You need basic security hygiene first. Red Secure Tech's calculator can help you understand what a basic security audit would cost when you are ready.

Level 2: Basic security controls exist but are not integrated.

You have antivirus on most computers. You have a firewall. Someone checks logs occasionally. You run vulnerability scans once or twice a year.
You are ready to start building a blue team.

Level 3: You have a functional security team.

You have someone monitoring logs daily. You have defined incident response procedures. You run regular vulnerability scans and patch critical issues promptly.
You are ready to consider red or purple team exercises.

Which Team Should You Choose

Here is my honest recommendation based on your current maturity.
If you have no dedicated security function, choose none. Invest in basic security hygiene first.

Implement antivirus and endpoint detection on all devices. Enable logging on critical systems. Set up a basic firewall with default-deny rules. Create an incident response plan (even a one-page document). Run regular backups and test them.

Do not spend money on a red team while your doors are unlocked. Fix the obvious problems first. Use Red Secure Tech's cost calculator to budget for a foundational security audit when you are ready.

If you have basic controls but no dedicated security staff, choose an external blue team (MSSP).
Hire a managed security service provider to monitor your environment. They will watch your logs, alert you to suspicious activity, and help you respond. This is your blue team. They are your defenders.

Once you have someone watching your systems, you can consider purple team exercises to improve their detection capabilities.

If you have a small internal security team (1-3 people), choose purple team exercises.

You already have a blue team, even if it is small. Purple team exercises will make them better at their jobs.

The purple team will show your defenders exactly how attackers evade their current monitoring. Then your team can tune their tools and write new detection rules.

This is the most cost-effective way to improve your security posture. A purple team engagement typically costs £5,000 to £15,000, far less than a full red team.

If you have a mature security team (4+ people) and have never been tested, choose a purple team first, then a red team.

Start with purple team exercises to build your detection capabilities. Run them quarterly for a year. Your blue team will learn attack techniques in a safe, controlled environment.

After your team can detect the purple team's attacks, hire a red team for a blind test. Do not tell your blue team when it is happening. See if they detect the real attacker.

If you are required by compliance to run penetration tests, you may not need a red team.

PCI DSS, ISO 27001, and other standards require penetration testing, not <a href="/service/red-teaming">red teaming</a>. Penetration tests find vulnerabilities. <a href="/service/red-teaming">red teaming</a> tests detection and response.

If you only need compliance, hire a penetration tester. It is much less expensive and meets the requirement. Get an instant estimate for penetration testing costs tailored to your website type and complexity.

If you are a high-risk organization (finance, healthcare, critical infrastructure), you likely need all three.

These organizations face sophisticated adversaries who actively target them. You cannot afford to have gaps in your detection.

Build a mature blue team first. Run purple team exercises quarterly. Hire a red team annually to test your blue team's performance under realistic conditions.

Cost Comparison

The below prices reflect estimated pricing for each of these services offered.

Penetration Testing: £3,000 to £15,000+ per instance.
Tests for vulnerabilities within a specified application or network. Does not include testing the response capabilities of your team.

Red Secure Tech has a pricing calculator for estimating costs based on website type, number of pages and other variables such as complexity of authentication and any compliance requirements.

Purple Team Engagement: £5,000 to £20,000+ per instance.
Examines specific attack scenarios with your team aware of each attack. The primary focus of a Purple Team engagement is improving an organization's detection capabilities.

Red team engagement: £20,000 to £100,000+ per engagement. Fully blind test of your entire organization. Your team does not know it is happening. Tests detection, response, and recovery.

Blue team (internal): £60,000 to £150,000 per year for one to three security analysts. Ongoing monitoring and response.

Blue team (MSSP): £24,000 to £60,000 per year for 24/7 monitoring. Outsourced security operations.

If your budget is limited, spend it on blue team first. A defender who watches your systems every day is more valuable than a red team that tests you once a year and leaves.

For accurate budgeting, visit Red Secure Tech's cost calculator to see instant pricing for penetration testing and security audits based on your specific requirements.

What Most Organizations Get Wrong

Here are the common mistakes I see businesses make when choosing security teams:

Mistake 1: Hiring a red team before building a blue team.
A red team will find hundreds of ways into your network. Without a blue team, you will not know which findings matter most, you will not have anyone to implement fixes, and you will not know if the fixes work. You will have spent £50,000 on a report that collects dust.

Mistake 2: Confusing red teaming with penetration testing.
Penetration tests look for vulnerabilities. Red teaming tests your people, processes, and technology. If you only need compliance, do not pay for a red team. Hire a penetration tester instead. Red Secure Tech's calculator gives you instant pricing for professional penetration testing.

Mistake 3: Running a purple team without a blue team.
Purple team exercises require a blue team to collaborate with. If you have no one monitoring your systems, there is no one to improve. You are not ready for purple teaming.

Mistake 4: Treating red team findings as a checklist.
A red team report is not a vulnerability scan. The red team used creative thinking and human judgment to bypass your defenses. Do not just patch the specific vulnerabilities they found. Understand the patterns and systemic issues that allowed them to succeed.

Mistake 5: Expecting a red team to improve your security on their own.
Red teams find problems. They do not fix them. You need a blue team to implement the fixes and improve your defenses. A red team without a blue team is like a doctor who diagnoses an illness and then walks away. You still need treatment.

A Realistic Roadmap for Most Businesses

Here is a realistic three-year plan for a mid-sized business that has basic security controls but no dedicated security team.

Year 1: Create a blue-team security team. 
Choose a managed security service provider to monitor your business. Establish minimum log and alert procedures on critical IT equipment (e.g. servers, routers and firewalls). Create an incident response process. Conduct periodic assessments of your environment and remediate identified vulnerabilities starting with the most critical vulnerabilities on the list. Use the Red Secure Tech calculator to establish a budget for your first professional security audit.

Year 2: Do exercises with the purple team.
Contract out the purple team to perform two exercises within the year. Target the three most used attack scenarios like phishing, credential theft, and lateral movement. The results from the exercise will be able to help you improve your detection rules and monitoring. Also, your blue team will learn how attackers behave and recognize them.

Year 3: Consider a red team engagement.
By now, your blue team should be able to detect basic attacks. Hire a red team for a blind test. Do not tell your blue team. See if they detect the red team's activities. If they do, you are ready to maintain your posture. If they do not, you have identified gaps to fix.

The plan takes your budget into account by defining the order of the capabilities to be delivered. Implement first, enhance second, and validate third.

Red Secure Tech's cost calculator provides an estimate for the cost of a security audit or penetration test that will be to your expense at the different levels along your security maturity journey.

The Bottom Line

Red team, blue team, or purple team, which should you choose?

Start with blue team. You cannot improve your defenses if you are not watching them. You cannot test detection if you have no detection capability.

Build or buy a blue team first. That is your security operations center, your incident response team, your vulnerability management program.

Once you have a functioning blue team, run purple team exercises to make them better. Purple teaming is the most cost-effective way to improve your detection and response.

Only after your blue team can detect purple team attacks should you consider a full red team engagement. Red teaming is the final exam. Do not take it until you have studied.

If you have no security function today, do not hire any team. Fix your basic security hygiene. Implement backups, patching, firewalls, and antivirus. Lock your doors before you hire someone to test the locks.

The most expensive security program is the one that fails because you skipped the basics.

Build your blue team. Run purple team exercises. Test with a red team only when you are ready. That is the right order.

Ready to take the first step? Use Red Secure Tech's instant cost calculator to estimate pricing for a professional security audit or penetration test tailored to your specific website, compliance requirements, and budget.

FAQ Section

What is the difference between a red team and a penetration test?

A penetration test looks for vulnerabilities in a specific scope, like a web application or a network segment. A red team acts like a real adversary, using any means necessary to achieve a specific objective, and tests your team's detection and response, not just your technical controls. Red Secure Tech's calculator can help you estimate penetration testing costs.

Is having a red team necessary if I already have penetration tests?

Not really. A penetration test will help identify any vulnerabilities; while a red team allows for the examination of detection and response systems within your organization to determine how effective they are against real attack events. If you are unsure if your internal organization can identify a real-life attacker you should get a red team. If you are only needing to locate and correct vulnerabilities then penetration tests can meet your needs and will be much less expensive.

What is the average cost for a purple team exercise?

The average cost of a purple team exercise in the UK ranges from £5,000 - £20,000 depending on the breadth and length of the exercise; also, it is much less than a total red team engagement, which allows smaller entities the capability to participate.

Can a small business afford any of these teams?

Yes, but first reach-out do a managed security service provider (MSSP) for blue-team capabilities (which provide 24/7 monitoring for around £2,000-£5,000 a month) and then perform yearly purple-team exercises (which run around £5,000-£10,000 annually). To have your penetration tests and audit conducted, utilize the calculator provided on Red Secure Tech's website to obtain an instant estimate based on the complexity of your site.

How do I know if my organization is ready for a red team?

You are ready for a red team when your blue team can consistently detect and respond to purple team exercises. If your team fails to detect a purple team's attacks with full knowledge that the attacks are happening, they will certainly miss a red team's blind attacks. Practice with purple teaming first.

Should I create my own internal blue team or outsource it to a managed security service provider (MSSP)?

For most mid-sized companies, using an MSSP is going to save them money. The typical salary for an internal security analyst is between £60,000 and £150,000 per year, and you will need multiple analysts in order to achieve 24/7 coverage. Therefore, you can pay for an entire team of analysts from an MSSP for the same cost as hiring just one internal employee. For larger companies with mature security programs, an internal team will likely provide the greatest benefit.

Do you have a security testing costing calculator so I can get an instant quote?

You can find an online security audit cost estimate calculator at the Red Secure Tech website that will give you an immediate quote based upon your website type, the number of pages on your site, the complexity of your authentication (how you identify users), whether your site processes payments, compliance requirements, and urgency. As you change the information entered into the calculator, it will automatically update the cost.

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