KVKK and local cloud: a practical compliance guide

KVKK compliance isn’t something you settle by signing a contract clause — where your data physically lives, who can access it, and how it can be deleted are concrete, auditable facts. If a cloud provider can’t give you a clear answer to those three questions, the compliance burden stays with you regardless of what the contract says. This guide covers data residency, audit trails, backup location, and deletion requests as a practical checklist.

What data residency actually means

Data residency means the physical location where your data is processed and stored stays within a specific jurisdiction — in this case, Türkiye. That’s not just a question of “is the server in Türkiye” — three separate layers all need to stay local:

• Compute layer. The physical hardware running your virtual servers and databases needs to be in a data center in Türkiye.
• Storage layer. Your disk data and snapshots need to stay within the same geographic boundary.
• Backup layer. This is the layer that usually gets skipped — even if production data is in Türkiye, backups can end up shipped to a storage service in a different country. Backup location needs to be asked about separately.

A provider saying “your data is in Türkiye” isn’t enough on its own — you need to confirm, at the contract or technical documentation level, that all three layers stay in the same data center.

Why audit trails matter

Data security obligations under KVKK require you to be able to show who accessed what data, and when. If you can’t answer “who looked at this, and when” in the event of a suspected breach, that’s a real gap — both for an internal investigation and for a regulatory review.

A practical audit trail needs to capture:

• The identity of the user who accessed the data (including system administrators — “admin can see everything, but it’s not logged” is not an acceptable model)
• The resource accessed (which server, which database, which file)
• The time of access and the type of action (viewed, modified, deleted)
• The role or authorization under which the access happened

An audit trail kept without role-based access control (RBAC) is incomplete — knowing “who accessed” only means something when it’s read together with “under what authorization.”

Why backup location is a separate question

Backups are typically kept in a storage pool separate from production — that’s the right design for disaster recovery (the same hardware failure shouldn’t be able to take out both production and the backup). But that separate pool still needs to sit within the same country’s borders as production; otherwise “your data is in Türkiye” only holds true for the production layer, not for backups.

The question to ask is this: are your backups kept in a storage pool that’s separate from production but within the same country, or are they shipped to a different geography? The latter can amount to an actual violation of a data residency commitment, even if the contract says otherwise.

Deletion requests (KVKK Article 7)

KVKK Article 7 governs the deletion, destruction, or anonymization of personal data under certain conditions. For a cloud provider, that raises two technical questions:

1. How is a deletion request processed? The channel for submitting a request, the response timeframe, and which data categories it covers all need to be clearly defined.
2. Does deletion cover backups too? Deleting a record from production isn’t enough on its own — that same record likely also exists in historical backups. The provider’s retention policy needs to guarantee that old backups get cleaned up automatically after a set period; otherwise, data that was “deleted” can still be restored from a backup months later.

This isn’t settled with a single answer; there are follow-up questions worth putting to your provider: After a deletion request, are the backups containing that data simply held until the automatic retention period expires, or is early deletion on request (e.g. targeting and cleaning a specific backup individually) possible? Is the backup retention period (say, 30 or 90 days) a written contractual commitment, or merely a technical default? The answers are not a legal guarantee — final compliance responsibility stays with the data controller — but a provider that can answer these questions clearly is signalling that its process is auditable.

Tenant isolation and the data-leak risk

A third layer that matters as much as residency and audit trails is making sure customers in a multi-tenant environment can’t reach each other’s data. In a shared cloud environment, a misconfigured network or resource boundary for one customer can leak data to another — that’s a KVKK-relevant breach scenario even without any external attacker involved. Full tenant isolation means environments separated at the network, resource, and access level, and that separation needs to be guaranteed by the platform’s technical architecture, not just a contract clause.

A practical checklist

When evaluating a cloud provider, check these 10 items:

1. Which country, which data center, holds production data?
2. Are backups kept within the same country’s borders, or shipped to a different geography?
3. Is any subcontractor outside the country used for processing, storage, or support?
4. Is access restricted through role-based authorization?
5. Is every access logged in an audit trail, including system administrator access?
6. How long are audit logs retained, and can they be produced on request?
7. Are backups encrypted at the storage layer?
8. Within what timeframe, and through what channel, are deletion requests processed?
9. Does deletion cover backups, or only the production environment?
10. Is the retention policy — when old backups get purged — documented in writing?

Questions to ask your provider

You can turn this checklist directly into questions for a sales or technical call:

• “Can you provide documentation showing the physical location and legal status of the data center where my data is held?”
• “Are my backups kept in the same country as my production data? If not, which geography are they in?”
• “If I request an access audit, how quickly can you produce records showing who accessed which resource?”
• “If I submit a deletion request under KVKK Article 7, does that request cover backups as well?”

If you can’t get clear, technical, contractually-backable answers to these, the compliance risk stays with you regardless of what the contract text says.

Want to verify KVKK compliance against concrete technical facts — data center location, audit trails, backup location? Request a demo and let’s walk through your questions directly on the platform.