A single missing patch was all it took to bring the system down. Weeks of logs, audits, and access rules meant nothing because no one checked the basics. This is the silent truth of most breaches: the danger isn’t a genius hacker, it’s the gap you didn’t see.
Security review is not a once-a-year chore. For a self-hosted setup, it’s the guardrail that stops the slide into chaos. Code is alive. Dependencies shift. Configurations drift. What was secure yesterday might be the open door today.
A proper self-hosted security review starts with asset inventory. Know every server, container, and process you run. Without this map, you are blind. From there, verify configurations against open benchmarks. Test for default credentials. Review access logs for patterns that don’t fit. Audit code for outdated packages, unescaped inputs, and unfiltered outputs.
Don’t trust the surface. Probe your attack surface with internal and external scans. Check SSL/TLS configurations, firewall rules, and network segmentation. Monitor data at rest and in transit. Every protocol you allow is another path to defend.