Why do security standards sometimes feel harder than custom builds?

Why standards feel more complicated than custom builds

Standards usually carry more structure because they are built for reuse across many environments, teams, and failure modes. A custom build can optimize for one use case and one set of assumptions. A standard has to stay safe when those assumptions change, which is why it often includes extra constraints, checks, and compatibility rules.

That added structure is not just bureaucracy. It reflects the fact that a standard is meant to survive drift, handoffs, scale, and mixed implementation quality. The result can feel heavier than a tailored design, but it is usually doing more work up front so fewer decisions are left to individual implementers later.

In practice, the hardest part is that standards encode lessons from many real deployments. A control that looks redundant in a simple environment may exist because it closes a gap that only appears when systems are integrated, upgraded, audited, or operated by different teams over time.

What standards are actually optimizing for

Custom builds are often judged by whether they solve the immediate problem elegantly. Standards are judged by whether they remain dependable when the environment stops being ideal. That means they often optimise for interoperability, repeatability, auditability, and predictable failure handling rather than for minimal surface area or pure simplicity.

This is why standards frequently include layered requirements, defined terminology, and explicit guardrails. They are trying to reduce ambiguity between implementers and reviewers. If everyone interprets a control the same way, the system is easier to operate, assess, and improve at scale.

For security teams, that difference matters because a “simple” custom design may hide implicit assumptions about trust, access, logging, or recovery. Standards make those assumptions more visible. In a governance sense, that often improves consistency, even if it raises the effort required to get an implementation accepted.

Why the complexity is often a signal, not a flaw

When a standard feels difficult, it is often because it is protecting against edge cases that are not obvious during initial design. Those edge cases include broken integrations, inconsistent enforcement, incomplete offboarding, and control bypass through exceptions. A standard has to account for the way security actually fails, not only the way it is expected to work.

That is why mature standards can look over-engineered compared with a one-off build. They are trying to make the safe path the default path. The complexity is often concentrated in the specification so the operational workload is lower later, especially when multiple teams or vendors need to align on the same control model.

For a useful analogue, the purpose of formal control sets such as NIST SP 800-53 Rev 5 Security and Privacy Controls is to define security expectations broadly enough that they still hold under different architectures and operating models. That breadth can feel demanding, but it is what makes the standard durable.

Risk and Threat Considerations

Standards become harder when they are trying to prevent failures that only show up under pressure, at scale, or after a compromise. The apparent overhead is often a response to real exposure: the more people, systems, and integrations that rely on a control, the more damaging a narrow or fragile design becomes.

Failure mechanism: A custom build can look efficient until an unplanned dependency, exception path, or operational handoff breaks the assumptions behind it. Standards reduce that risk by forcing explicit handling of conditions such as access review, recovery, and consistent enforcement.

Impact: The cost is more design and implementation effort up front, but the benefit is lower ambiguity, fewer silent control gaps, and better resilience when the environment changes or a control must be audited, inherited, or recovered.

Practitioner Guidance

What to prioritise: Judge standards by the failure modes they are trying to prevent, not by how quickly they can be read or implemented. If a requirement seems unnecessary, ask which assumption breaks when the system scales, changes owners, or crosses a trust boundary.

What to verify: Verify whether the standard is adding genuine control coverage or just redundant process. If the extra step improves consistency, auditability, or recovery, it is probably serving a real purpose. If it only adds paperwork without changing behaviour, it may need simplification.

Common mistake: Teams often treat custom builds as inherently clearer because the design is smaller. In practice, the hidden complexity just moves into tribal knowledge, exception handling, and future maintenance.

Practitioner takeaway: The right comparison is not “simple versus complex”, but “explicitly engineered safety versus implicit assumptions”, and standards usually win when the environment must stay safe beyond the first deployment.

Related resources from NHI Mgmt Group

• How should security teams prioritise NHI remediation in cloud environments?
• How should security teams govern non-human identities at scale?
• How should security teams govern non-human identities for compliance?
• How should security teams govern non-human identities in Salesforce?