Hiring good-guy hackers that probe both the physical and virtual security of a company is an increasingly popular method that many organizations use to test their cyberdefense posture. The basic idea is to task an outside group to challenge the institutional bias that often grows up over time in an organization. Red teams can help recognize the shortcomings that might leave an organization unprepared to defend against potential attack. But make no mistake: Red-teaming can turn out to be a very painful experience for the targeted institution, raising questions about people’s’ effectiveness in their jobs.”]
Source: https://www.csoonline.com/article/3124765/why-red-teams-should-be-part-of-your-team.html