Merge pull request #7 from center-for-threat-informed-defense/tiffb-p…

…atch-1

Update README.md

README.md

@@ -1,74 +1,52 @@
+[![MITRE ATT&CK® 15.1](https://img.shields.io/badge/MITRE%20ATT%26CK®-v15-red)](https://attack.mitre.org/versions/v15/)
+
 # Defending OT with ATT&CK
 
-<!-- TODO Put a one paragraph summary of the project here. -->
+Defending Operational Technology (OT) with ATT&CK  is a Center for Threat-Informed Defense (Center) 
+project that provides a customized collection of [MITRE ATT&CK®](https://attack.mitre.org/) techniques tailored to the 
+attack surface and threat model for OT environments. The collection of threats contained 
+in the ATT&CK knowledgebase, including historical attacks against OT, are used to define a 
+reference architecture and technology domains of interest for OT. The resultant collection 
+can be used by organizations that use OT to evaluate and employ security controls for 
+real-world adversary behaviors.
 
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+This work builds upon the Center's [Defending IaaS with ATT&CK](https://mitre-engenuity.org/cybersecurity/center-for-threat-informed-defense/our-work/defending-iaas-with-attack/) project by using 
+the methodology and tooling created under that project as a basis. Defending OT with ATT&CK
+provides an additional collection of resources cyber defenders can use to understand and make 
+threat-informed decisions for techniques that could be used within an IT/OT hybrid architecture 
+and environment. 
 
 **Table Of Contents:**
 
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-
 - [Getting Started](#getting-started)
 - [Getting Involved](#getting-involved)
-- [Questions and Feedback](#questions-and-feedback)
 - [Notice](#notice)
 
 ## Getting Started
 
-<!-- TODO Write one paragraph about how users should get started,
-     and update the table of resources below. -->
+To get started, visit the project website. The website includes an overview of the project, 
+the reference architecture assets, the threat modeling methodology, and the customized threat 
+collection. Use cases and a cyber tabletop exercise scenario are also provided.
 
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-
-| Resource        | Description              |
-| --------------- | ------------------------ |
-| [Resource 1](#) | Description of resource. |
-| [Resource 2](#) | Description of resource. |
-| [Resource 3](#) | Description of resource. |
+| Resource                                                                                                                                              | Description                                          |
+| ----------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------- |
+| [Project Website](https://center-for-threat-informed-defense.github.io/defending-ot-with-attack/)                                                     | Reference architecture, methodology, usage           |
+| [Threat Collection](https://github.com/center-for-threat-informed-defense/defending-ot-with-attack/TBD)                                               | Mapped techniques for OT environments                |
+| [Hybrid Navigator Layer](https://github.com/center-for-threat-informed-defense/defending-ot-with-attack/tree/main/mappings/layers/TBD)                | ATT&CK Navigator views of the hybrid ATT&CK matrix   |
 
 ## Getting Involved
 
-<!-- TODO Add some bullets telling users how to get involved. -->
-
 There are several ways that you can get involved with this project and help
-advance threat-informed defense:
+advance threat-informed defense. Please review the project resources, use them, and tell us 
+what you think.
 
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-
-## Questions and Feedback
+We welcome your contributions to help advance Defending OT with ATT&CK in the form of [pull
+requests](https://github.com/center-for-threat-informed-defense/defending-ot-with-attack/pulls). Please review the [contributor notice](https://github.com/center-for-threat-informed-defense/defending-ot-with-attack/blob/main/CONTRIBUTING.md) before making a pull request.
 
-Please submit [issues on
-GitHub](https://github.com/center-for-threat-informed-defense/defending-ot-with-attack/issues)
-for any technical questions or requests. You may also contact
-[[email protected]](mailto:[email protected]?subject=Question%20about%20defending-ot-with-attack) directly for more general inquiries about
+Please submit [issues on GitHub](https://github.com/center-for-threat-informed-defense/defending-ot-with-attack/issues) for any technical questions or requests. 
+You may also contact [[email protected]](mailto:[email protected]?subject=Question%20about%20defending-ot-with-attack) directly for more general inquiries about
 the Center for Threat-Informed Defense.
 
-We welcome your contributions to help advance Defending OT with ATT&CK in the form of [pull
-requests](https://github.com/center-for-threat-informed-defense/defending-ot-with-attack/pulls).
-Please review the [contributor
-notice](https://github.com/center-for-threat-informed-defense/defending-ot-with-attack/blob/main/CONTRIBUTING.md)
-before making a pull request.
-
 ## Notice
 
 <!-- TODO Add PRS prior to publication. -->