Open source security software, such as authentik, provides transparency and community-driven development, allowing for faster patching of vulnerabilities and more visibility into the code. This contrasts with closed source solutions, which can be harder to audit and may require waiting for vendors to respond to security issues. While open source is not a silver bullet for security, it offers greater flexibility, modifiability, and control over the code, making it easier to trust and verify its integrity. Closed source vendors, on the other hand, rely on proprietary software and may have less transparency about their development processes and supply chains, making it harder to assess their credibility. Ultimately, the choice between open source and closed source security software depends on an organization's specific needs, expertise, and risk tolerance.