Sri Lanka Financial Sector Computer Security Incident Response Team

(FinCSIRT)

"Together, We Build a Secure Financial Sector"

Document Disclosure Classification

Document classifications are used by FinCSIRT to disseminate documentation with the highlight of its classification levels indicating, if the document is permitted on further distribution or for the readers eyes only

Definitions

Classification Description
Private and Confidential Circulation of this document is prohibited and intended for the use of the original recipient(s) only.
Organization Internal Use Only Circulation of the document is permitted within authorized persons of the organization, at the discretion of those authorized individuals.
Public Circulation Permitted This document is permitted for public viewing with no restrictions on circulation of the document.

Traffic Light Protocol (TLP)

FINCSIRT uses TLP according to the FIRST Standard Definition and usage Guidence.

What is TLP ?

The Traffic Light Protocol (TLP) was created in order to facilitate greater sharing of information. TLP is a set of designations used to ensure that sensitive information is shared with the appropriate audience. It employs four colors to indicate expected sharing boundaries to be applied by the recipient(s).



Definitions

Color When should it be used? How may it be shared?
TLP:RED
TLP:RED
Not for disclosure, restricted to participants only.
Sources may use TLP:RED when information cannot be effectively acted upon by additional parties, and could lead to impacts on a party's privacy, reputation, or operations if misused. Recipients may not share TLP:RED information with any parties outside of the specific exchange, meeting, or conversation in which it was originally disclosed. In the context of a meeting, for example, TLP:RED information is limited to those present at the meeting. In most circumstances, TLP:RED should be exchanged verbally or in person.
TLP:AMBER
TLP:AMBER
Limited disclosure, restricted to participants’ organizations.
Sources may use TLP:AMBER when information requires support to be effectively acted upon, yet carries risks to privacy, reputation, or operations if shared outside of the organizations involved. Recipients may only share TLP:AMBER information with members of their own organization, and with clients or customers who need to know the information to protect themselves or prevent further harm. Sources are at liberty to specify additional intended limits of the sharing: these must be adhered to.
TLP:GREEN
TLP:GREEN
Limited disclosure, restricted to the community.
Sources may use TLP:GREEN when information is useful for the awareness of all participating organizations as well as with peers within the broader community or sector. Recipients may share TLP:GREEN information with peers and partner organizations within their sector or community, but not via publicly accessible channels. Information in this category can be circulated widely within a particular community. TLP:GREEN information may not be released outside of the community.
TLP:WHITE
TLP:WHITE
Disclosure is not limited.
Sources may use TLP:WHITE when information carries minimal or no foreseeable risk of misuse, in accordance with applicable rules and procedures for public release. Subject to standard copyright rules, TLP:WHITE information may be distributed without restriction.
Usage
How to use TLP in email TLP-designated email correspondence should indicate the TLP color of the information in the Subject line and in the body of the email, prior to the designated information itself. The TLP color must be in capital letters: TLP:RED, TLP:AMBER, TLP:GREEN, or TLP:WHITE.