There is some confusion about the differences in Red, Blue and Purple team within Computer Security. The purpose of a Red Team is to find ways to improve the Blue Team, so Purple Teams should not be needed in organizations where the Red Team / Blue Team interaction is functioning properly.
- Red Teams are external entities brought in to test the effectiveness of a security program. This is accomplished by emulating the behaviors and techniques of likely attackers in the most realistic way possible. The practice is similar, but not identical to, penetration testing, and involves the pursuit of one or more objectives.
- Blue Teams refer to the internal security team that defends against both real attackers and Red Teams. Blue Teams should be distinguished from standard security teams in most organizations, as most security operations teams do not have a mentality of constant vigilance against attack, which is the mission and perspective of a true Blue Team.
- Purple Teams are ideally superfluous groups that exist to ensure and maximize the effectiveness of the Red and Blue teams. They do this by integrating the defensive tactics and controls from the Blue Team with the threats and vulnerabilities found by the Red Team into a single narrative that ensures the efforts of each are utilized to their maximum. When done properly, 1 + 1 will equal 3, but this should be happening naturally as the benefit of having a Red and Blue team.
It is important that Red Teams maintain a certain separation from the organizations they are testing, as this is what gives them the proper scope and perspective to continue emulating attackers. Organizations that bring Red Teams inside, as part of their security team, tend to (with few exceptions) slowly erode the authority, scope, and general freedom of the Red Team to operate like an actual attacker. Over time (often just a number of months) Red Teams that were previously elite and effective become constrained, stale, and ultimately impotent.
Feel free to contact E-SPIN for the solution for your system and operation to reduce risk of your businesses and organization. We can secure and protect your businesses with our various software security technology, as well as handling of your red team, blue team and purple team operation requirement.