Traffic Light Protocol (TLP):
This marking protocol is widely used around the world. It has four colors (traffic lights):
Red – Personal, Confidential and for Intended Recipient Only
The recipient has no rights to share information classified in red with any
person outside the defined range of recipients either inside or outside the
organization.
Amber – Restricted Sharing
The recipient may share information classified in amber only with intended
recipients inside the organization and with recipients who are required to take
action related to the shared information.
Green – Sharing within the Same Community
The recipient may share information classified in green with other recipients
inside the organization or outside it within the same sector or related to the
organization. However, it is not allowed to exchange or publish this information
on public channels.
White – No Restriction