TruffleHog is a secrets scanning tool that identifies exposed credentials, API keys, passwords, and sensitive tokens across software development lifecycle platforms. The tool scans version history of code repositories, including all branches, to detect secrets hidden in source code, comments, Docker images, NPM packages, and containers. The tool performs programmatic verification of detected credentials using their respective protocols or APIs to reduce false positives. It scans beyond primary branches to provide comprehensive multi-branch analysis across entire projects. TruffleHog includes an analysis capability that automatically identifies resources and permissions associated with discovered API keys and secrets without requiring access to provider user interfaces. The tool supports pre-commit and pre-receive hooks to prevent secret leaks before code commits occur. The platform tracks remediation status of different key types and can send alert reminders through preferred communication channels. It provides links to guides for key rotation and securing credentials. TruffleHog scans multiple sources including Git repositories, ticket systems, and various platforms throughout the development pipeline to identify secrets in unexpected locations.