When considering cyber security, keeping on top of threats is important, and by no means a simple task. As attacks become increasingly sophisticated and harder to detect, our defences need to remain sharp and up-to-date. One approach to improving security that has been gaining popularity is called ‘Purple Teaming’.
In this post, we’ll break down why ‘Purple Teaming’ might be a valuable addition to your ongoing security initiatives.
What is Purple Teaming?
Purple Teaming is essentially about bringing together both sides of the cyber security arena: the Red Team and the Blue Team.
- Red Teams research and simulate the activities of real-world attackers, including hackers, by probing systems through penetration testing. Using the same tools and techniques as cybercriminals, they help uncover and highlight vulnerabilities before real attackers can exploit them.
- Blue Teams defend against the attacks of Red Team attack simulations and those of real external attackers. The Blue Team focuses on detecting and responding to threats, often using a SOC or a SEIM platform, and works on strengthening overall defences.
Purple Teaming is a security strategy combining the Red and Blue Teams to form a more holistic view of cyber security. When a Purple Team engagement is initiated, rather than working separately in an adversarial capacity, both the Red and Blue Teams will work together and learn from each other to create a stronger, more cohesive security posture.
What is the effectiveness of Purple Teaming?
One of Purple Teaming’s greatest strengths is that it is an arrangement of cooperation between both the defensive and offensive sides of cyber security. By combining the offence of a Red Team with the defence of a Blue Team, it is possible to develop a stronger and more in-depth security posture.
Within a Purple Team engagement, the Red Team will simulate attacks to identify vulnerabilities or gaps in security, while the Blue Team actively monitors and attempts to defend against any detected attacks. The Purple Team as a whole will use the information that is generated by the attacks, in addition to what is reported by the Red Team, to improve on existing defence strategies, and to develop more effective monitoring, detection, mitigation, and recovery techniques.
Normally Red and Blue Teams work separately, often in an adversarial capacity; however, when operating as a Purple Team, the Red and Blue Teams work together to share knowledge and insights that may otherwise be unknown or not considered. While Red Teams share their latest attack techniques, the Blue Teams offer tips or advice on how they monitor and prevent the attacks, which can allow the Red Team to further develop possible bypass techniques for the Blue Team to work on detecting. This creates a constant cycle of improvement for both teams, and identifies areas where there may be opportunities to upskill.
This type of cooperation not only helps in the identification of new or existing vulnerabilities, but also assists in the development of more effective incident response plans, playbooks, and guidelines, as well as the configuration of monitoring and detection tools, such as a SIEM dashboard or alerts. This level of active communication and improvement helps to stay on top of even the latest threats, and increase the speed of response for any incident that may arise.
Why You May Want to Consider Purple Teaming
Purple Teaming offers a unique combination of offensive and defensive strategies, which can provide numerous benefits across various aspects of your organisation’s cybersecurity efforts. Beyond just improving security posture, this collaborative approach fosters deeper learning, stronger relationships between teams, and greater resilience against evolving threats.
Here are some of the key outcomes you can expect from adopting Purple Teaming:
- Improved Incident Mitigation, Response, and Recovery:
By looking at both sides of the cyber security coin, your Blue Team is more able to quickly identify threats and have the knowledge and experience on how to stop them in their tracks. By understanding not only the commonly used, but also the niche attacks, your teams will be better informed to implement procedures that effectively minimise any impact or expedite the required recovery following an incident. - Enhanced Threat Intelligence:
The dynamic nature of Purple Teaming ensures that both offensive and defensive perspectives are considered, helping your teams to keep up-to-date with the latest attack vectors and vulnerabilities, while patching security gaps in real time. - Training and Development:
Teamwork is important. Purple Teaming encourages ongoing learning and skill-sharing between Red and Blue Teams, fostering an environment where information, techniques, and tools are openly exchanged. This cooperation shifts the mindset from an adversarial ‘Us vs Them’ mentality, to that of a unified team working toward the common goal of strengthening security.
To stay ahead of cyber threats, organisations must adopt a proactive and cooperative approach. Purple Teaming offers the perfect blend of offensive and defensive strategies to enhance your security posture, improve response times, and foster collaboration among your cybersecurity teams. By embracing this methodology, your organisation can build a stronger defence while continuously learning and adapting to new threats. Ultimately, the strength of Purple Teaming lies in its ability to drive constant improvement, making it a valuable inclusion in any security strategy.