An evolving how-to guide for securing a Linux server.

Lynis - Security auditing tool for Linux, macOS, and UNIX-based systems. Assists with compliance testing (HIPAA/ISO27001/PCI DSS) and system hardening. Agentless, and installation optional.

Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.

Agent-less vulnerability scanner for Linux, FreeBSD, Container, WordPress, Programming language libraries, Network devices

Prowler is an Open Source Security tool for AWS, Azure, GCP and Kubernetes to do security assessments, audits, incident response, compliance, continuous monitoring, hardening and forensics readiness. Includes CIS, NIST 800, NIST CSF, CISA, FedRAMP, PCI-DSS, GDPR, HIPAA, FFIEC, SOC2, GXP, Well-Architected Security, ENS and more

A collection of awesome security hardening guides, tools and other resources

Open-source tool to enforce privacy & security best-practices on Windows, macOS and Linux, because privacy is sexy

Migrate C code to Rust

user.js -- Firefox configuration hardening

Security automation content in SCAP, Bash, Ansible, and other formats

Harden Windows Safely, Securely using Official Supported Microsoft methods and proper explanation | Always up-to-date and works with the latest build of Windows | Provides tools and Guides for Personal, Enterprise, Government and Military security levels | Read The Rationale https://github.com/HotCakeX/Harden-Windows-Security/blob/main/Rationale.md

Librefox: Firefox with privacy enhancements

Generate sandboxes for C/C++ libraries automatically

Secure-by-default HTTP servers in Go.

Hardening Ubuntu. Systemd edition.

🔑 Community-driven Rails Security Checklist (see our GitHub Issues for the newest checks that aren't yet in the README)

Simple Golang HTTPS/TLS Examples

Terraform module to set up your AWS account with the secure baseline configuration based on CIS Amazon Web Services Foundations and AWS Foundational Security Best Practices.

USBGuard is a software framework for implementing USB device authorization policies (what kind of USB devices are authorized) as well as method of use policies (how a USB device may interact with the system)

a collection about Windows 11