Data Residency
Data residency is the requirement that data be stored and processed within a specific geographic or legal jurisdiction. It is driven by law and contract: GDPR constraints on transfers out of the EU, sector rules in finance and healthcare, and customer commitments about where their data lives. For AI systems, residency becomes a live question at inference time, because sending a prompt to a model endpoint in another region can move regulated data across a border. Meeting residency obligations means controlling which model endpoints a given request may reach, and proving where each request went.
Why AI traffic complicates residency
A model provider often serves inference from several regions, and the default endpoint may not be the one a residency rule allows. When an application sends a prompt to a global API, the data in that prompt can be processed wherever the provider routes it. For an EU deployment handling personal data, or a healthcare workload under regional rules, that routing decision is a compliance event, and it happens silently on every call unless something governs it.
How residency gets enforced and evidenced
Residency enforcement for AI means two things: routing each request only to model endpoints in permitted regions, and keeping evidence of where each request was allowed to go. DeepInspect evaluates the destination and the identity against policy on the HTTP path, so a request carrying regulated data can be confined to an approved regional endpoint or blocked. The per-decision audit record captures the endpoint and the verdict, which is the documentation a regulator or auditor asks for when they want proof that residency held.
Related reading
- AI Data Residency Controls: Enforcing the Region Boundary at the Gateway
AI data residency requirements show up under GDPR, the EU AI Act, sector regulations like DORA and HIPAA, and national rules such as the Reserve Bank of India circulars. The control that survives audit binds the residency rule to the request at the gateway, routes the call to a region-resident model endpoint, and records the region of decision in the per-decision audit log. This walkthrough covers the three residency conditions, the routing patterns that enforce them, and the audit-record fields that survive a regulator request.
- EU AI Act Compliance: What the Regulation Requires from Enterprise AI Architecture
The EU AI Act enters force in stages from February 2025 through August 2027. The August 2, 2026 deadline brings high-risk system obligations into effect for most enterprise AI deployments in the EU market. Penalties under Article 99 reach €35 million or 7% of global annual turnover. This pillar walks through what the Act actually mandates, where most architectures fall short, and the infrastructure pattern that satisfies the obligations at scale.