We're in the process of expanding our AI product into Europe and Asia, and it seems like complying with data residency laws is a major hurdle. Each country has its own set of regulations: for example, Germany mandates that data is processed within its borders, while France, Singapore, and Japan have their own distinct and sometimes conflicting rules. We've experimented with regional deployments, but that's led to issues with data synchronization and model consistency. Centralizing our data violates these residency laws, and I received a spreadsheet from our legal team listing 47 different regulations that sometimes contradict each other. How are other companies handling these complexities with global AI products? It feels like we really need to deploy separate systems for each country, which seems unmanageable.
2 Answers
Yes, you’re definitely on the right track! For cryptographic proof, it’s essential to have a unique key for each region you operate in. This lets you create a secure link directly tied to that specific region’s data. It can get tricky, though, because different countries will have various expectations for what counts as sufficient proof. Layering this with strong network design can help bolster your case with regulators.
And what about multicloud options? Have you explored those?
I’ve faced a similar issue with a global fintech AI product. The data residency regulations can be quite brutal since they’re incredibly specific and often conflict. A good approach is to have regional deployments where you process customer data in the same region it’s collected. You can use shared models across regions to maintain consistency, but you’ll need to demonstrate to regulators that the data remains local even during processing. We started with standard AWS regional deployments, but we had to pivot to a confidential computing architecture using Phala in each region, which allows us to prove the data stays isolated and regional through hardware attestation. Each country’s regulators have the ability to verify this cryptographic proof. We keep our model updates synchronized by deploying the same code across all regions, only localizing the data. Using Infrastructure as Code can greatly simplify this—tools like Terraform help us manage multiple regional deployments effectively and keep things manageable.
Wouldn't a network diagram suffice to prove data locality? I doubt many regulators would understand cryptographic proof.
Totally agree, that's the right path. It's all about maintaining compliance while ensuring consistency.

Is that the strategy you’re currently using? What challenges have you run into?