Open Source Audit Tools
Hardening a system is less about finding one flaw than about systematically closing the dozens of small misconfigurations that accumulate as servers drift from their baseline. The open source tools here let you read exactly which checks run against your hosts and tune the benchmark to your own policy, so the audit reflects how you actually need to be configured rather than a vendor's idea of compliance.
Gitleaks
Detect secrets in git repos, files, and piped input
Infisical
Open-source secrets, certificate, and privileged access management for teams and infrastructure
TruffleHog
Find, verify, and analyze leaked credentials
Teleport
Identity-aware infrastructure access with short-lived certificates and audit across SSH, Kubernetes, databases, and RDP
Wazuh
Open source XDR and SIEM platform for endpoint, cloud, and container security
Lynis
Agentless security auditing tool for Linux, macOS, and Unix-based systems with compliance checks
Unleash
Open-source feature management platform for targeted rollouts, feature flags, and self-hosted control
SonarQube
Self-hosted server for continuous code quality and security inspection
OSV-Scanner
Scans dependencies against the OSV vulnerability database