In the military world,  Attack (Red) & Defend (Blue) Teams conduct internal “war games” to assess preparedness and resiliency. In the cybersecurity world, they work the same way; however, the joining of forces has produced a new color - purple. 
 

Typically, these colors existing in the domain of the InfoSec team. But what about teams that build and/or operate IT systems? They tend to be color blind — neither Red nor Blue nor Purple.  There’s tremendous value in teaching build and operate teams attack and defend tactics - attend this talk hear 3 experts explain why.