MITRE Engenuity has released ATT&CK Workbench, an open source tool that allows organizations to customize their local instance of the MITRE ATT&CK database of cyber adversary behavior.
![Adding a note to an object in the local ATT&CK database customize ATT&CK](https://img2.helpnetsecurity.com/posts2021/ATT&CK-Workbench-note.jpg)
The tool allows users to add notes, and create new or extend existing objects – matrices, techniques, tactics, mitigations, groups, and software – with new content. It also allows them to share these insights with other organizations.