Most breaches are boring failures of defaults — not genius attackers.
[ essay ]
Security is not a specialist-only concern. It is hygiene at boundaries.
Defaults worth enforcing: least-privilege credentials, secrets in vaults not repos, dependency scanning in CI, parameterized queries, CSRF and auth on state-changing routes, rate limits on auth endpoints, audit logs on admin actions.
Threat model the feature, not the whole company — what happens if this input is malicious, duplicated, or replayed?
Fix the boring items before buying exotic tools. Rotated keys, patched dependencies, and MFA stop more incidents than buzzword appliances.