CTI terminology and key models
Again, CTI is a broad topic, and this book is not meant to define it comprehensively. However, we wanted to give a broad overview of its terminology and models to help you become comfortable with it.
There are two mandatory pieces of terminology when it comes to CTI. The first one is the Traffic Light Protocol (TLP). This uses a simple 4-color scheme to define how and to whom an information can be shared with. It is intended to be easily understandable. It is important to note that the protocol can vary between organizations, but what follows is a generic definition of its color scheme:
- TLP White: There is no restriction on the audience for the information or the method of sharing the information.
- TLP Green: The information is restricted to the recipients but it could be shared within the organization, as well as within the community (which should be defined by the owner of the intelligence). It must be shared securely and not via public...