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818 production-grade cybersecurity skills · 34 security domains · 6 framework mappings · 26+ AI platforms

A curated list of amazingly awesome open source intelligence tools and resources. Open-source intelligence (OSINT) is intelligence collected from publicly available sources.

Sigma is a generic and open signature format that allows you to describe relevant log events in a straightforward manner. The rule format is very flexible, easy to write and applicable to any type of log file.

Most of the resources listed below provide lists and/or APIs to obtain (hopefully) up-to-date information with regards to threats. Some consider these sources as threat intelligence, opinions differ however.

Open-source AI agent framework for cloud security across AWS, Azure, GCP and Kubernetes: AI-powered cloud detection and response, and cloud security posture management findings triage.