The Threat Library is a knowledge base of techniques used by the enemies of anarchists and other rebels - a breakdown and classification of actions that can be used against us. Ultimately, the Threat Library is a tool to help you to think through what mitigations should be enacted in a specific project, and a way to navigate resources that go into more depth on these subjects. In other words, it helps you to arrive at appropriate Operational Security (OpSec) for your threat model.