Authenticate everywhere, authorize per role, log sensitive actions, and never trust client-side checks alone. Parameterized queries defeat most injection attempts.
Secrets belong in environment configuration, not repositories. Rotate credentials when staff depart.
Third-party libraries need patching; a simple dependency audit schedule prevents known CVEs from lingering.
Buy when your process matches the product; build when your process is the differentiator.
Software is never “done”—platforms, browsers, and threats move constantly.
Well-designed APIs let your custom app coexist with QuickBooks, Salesforce, EMRs, or ticketing systems.
The most expensive bugs are built from ambiguous specs.