Data localization and cross-border transfers: mapping the route
Web-server location is only one part of the data route. Forms, databases, analytics, email, helpdesk, backups, and administrators can create separate transfers.
Key points in one minute
- Map the actual data flow before choosing hosting.
- Secrets and personal data require distinct but coordinated controls.
- Review the field's actual first route, not only the primary database address.
- A new region or subprocessor requires another control review.
Initial collection
For Russian citizens' data, assess requirements governing collection and the use of databases located in Russia for recording, organization, storage, updating, and retrieval.
Trace each user field's first POST from browser through load balancer, application, queue, and primary database. Mark temporary buffers, serverless logs, and error tracking separately because they may receive content before the main database. Configuration should demonstrate where initial operations occur rather than merely showing the hosting provider's billing country.
All recipients
Include CDN, monitoring, support, payments, messaging, cloud storage, and contractors. Record countries and data categories for each.
For each recipient record the provider entity, processing role, storage and access countries, data categories, subprocessors, retention, and deletion method. Verify configuration rather than marketing language because CDN, analytics, or helpdesk services may use multiple regions. If a service cannot fit the approved design, reduce transferred data or choose an alternative before launch.
Cross-border transfer
Before a cross-border transfer begins, the controller submits a separate notice of intent to Roskomnadzor and performs the assessment of the foreign recipient required by law. Before launch, verify the current form, required information, possible regulator decisions, and contractual safeguards. Document the decision.
Enable a cross-border route only after the separate prior notice to Roskomnadzor and documented review of the applicable procedure, recipient conditions, and contractual safeguards. Account for any regulator response or prohibition and do not rely on an old checklist or a provider's previous approval. A region change, new subprocessor, or expanded data set should trigger another control gate before production activation.
Backups and access
Backup geography and remote administrative access belong on the map. Encryption does not remove the need to establish a transfer basis.
Inventory snapshots, object storage, disaster copies, administrator downloads, and contractor VPN access. For each define encryption, key jurisdiction, restore roles, and verifiable deletion. Recovery tests should run in a controlled environment and must not reintroduce previously deleted records into production. Temporary foreign access should also be recorded as a data route.
Practical checklist
- 1Build a complete data-flow diagram.
- 2Verify storage and access countries.
- 3Complete legal review before launch.
- 4Trace a test field from the form through every log.
- 5Review backups and temporary administrator access.
Sources and documentation
This material is based on primary, official, and technical sources. The article is an original summary written for this knowledge base.
This material is for general information only. Requirements should be checked against the current law and, when needed, with a qualified specialist. It is not individual legal advice.