PTX – the concept of the diffing strategy
We have seen that the purple teaming approach requires generating active checks (using offensive tools) to assess defense mechanisms for detection and prevention (using blue team solutions such as Security Information and Event Management (SIEM) and Endpoint Detection and Response (EDR)). For that purpose, we have seen that automation can be a great ally to ease the process with the help of commercial and free solutions.
But now, one main drawback exists. When we try to automate an assessment process and run the same checks regularly, we may fall into a situation where we can't triage the results in a timely fashion. Indeed, we will likely get the same results and probably will not be able to manage real issues, as well as not being able to differentiate the noise from the relevant issues.
An example of this is the vulnerability management process itself. Indeed, if you run vulnerability scans each week, you will get a similar...