Tidal Community Edition is a freely available, SaaS-based threat-informed defense platform that helps organizations assess, organize, and optimize their cyber defenses. It leverages the MITRE ATT&CK knowledge base and open-source threat intelligence to provide insights into adversary behaviors. Key features include advanced search capabilities, custom technique sets for tracking emulation plans, knowledge base labels for understanding relationships between threat objects, and a product registry to evaluate security product coverage and identify gaps. The platform integrates with various security solutions and supports threat-informed defense by enabling organizations to focus on relevant threats and optimize their security measures.