Roles and responsibilities
As usual in security, organization is key, especially for purple teaming success. Roles and responsibilities have to be clearly defined to avoid confusion, failure, and tension between teams and to optimize the success of the exercise.
A standard structure would look like this:
Of course, the structure may be adapted according to an organization's resources, needs, and objectives.
Indeed, it is common to see companies where a purple team manager or dedicated project manager is missing or merged with other roles. Most of the time, the blue team manager will take the lead on a purple teaming activity; this will ensure that the incident response is not disproportionate and not blocking production assets. On the other hand, we might want to introduce independence for the assessment; in that case, it can be necessary to hire an external consultant that will lead the...