They thought the firewall was enough. It wasn’t.
An Identity-Aware Proxy (IAP) can protect applications with authentication and context-based access. But without Separation of Duties, it’s only half the story. The most dangerous breaches happen when too much power is concentrated in a single role. One person with admin rights, deployment access, and key management is not security — it’s exposure.
Why Identity-Aware Proxy Needs Separation of Duties
An IAP enforces who can access what, based on identity. This alone blocks anonymous threats. But the insider threat — whether malicious or accidental — is different. Without well-defined Separation of Duties (SoD), a single compromised account can bypass every policy your IAP enforces.
SoD means that no individual can complete a critical action alone. In practice, that means breaking up responsibilities:
- One role deploys code, another approves.
- One role manages secrets, another controls the runtime.
- One role governs network access, another audits the logs.
When IAP is paired with strict SoD, authentication gates lead to locked rooms that require two keys, each held by different people. Attackers can’t move freely even if they break past the first identity layer.
Core Benefits of Combining IAP with SoD
- Reduced Attack Surface: Even if accounts are compromised, they cannot execute full control paths.
- Stronger Compliance Posture: Frameworks like SOC 2, PCI-DSS, and ISO 27001 require enforced role separation.
- Operational Safety: Fewer accidental deployments, credential leaks, or misconfigurations.
- Complete Access Visibility: Logs show not only who accessed what, but what role they played in the process.
Implementing Separation of Duties in Identity-Aware Proxies
Start with a role mapping exercise. Define every task that could cause high impact: deployments, configuration changes, database writes, security policy updates. Assign them across different roles and ensure your IAP policies match. Use conditional access rules tied to specific groups, devices, or locations. Split admin privileges into at least two layers so no action can occur without both halves. Automate enforcement — humans forget, systems don’t. Finally, test regularly. Attempt to bypass the system and see where duties blur. Fix it before someone else finds the same gap.
Security as a Layered Reality
An IAP blocks unauthorized entry. Separation of Duties blocks a single breach from becoming complete control. Together, they transform security from a single gate to a mesh of enforced controls. Organizations that treat them as one discipline see fewer incidents and recover faster from the ones that happen.
You don’t have to imagine this in theory. You can see it live without digging through months of engineering work. With hoop.dev, you can deploy an Identity-Aware Proxy with built-in Separation of Duties policies in minutes. Test it. See the enforcement in action. Then sleep knowing nobody — not even you — can bypass the rules alone.