We design data-residency controls for critical and personal data; a sovereign-cloud architecture aligned with KVKK, BTK, and BDDK expectations makes data-sovereignty goals measurable.
EVIDENCEISO 27001ISO 27017KVKKScope record
01Current stateTopology, traffic, and dependency visibility.
02Target architectureSegmentation, capacity, and availability design.
03Controlled cutoverChange window, validation, and rollback plan.
04HypercareMonitoring, tuning, and operational handover.
The critical topics this service addresses and the outcome we deliver in each.
Full visibility into data residency
evidence readiness
Through a data inventory and classification (personal, sensitive, critical, general) we provide visibility into where data resides.
Architecture aligned with regulatory expectations
published after approval
We design a compliance map and hybrid architecture aligned with KVKK, BTK and BDDK requirements, leaving certification and the final compliance decision to the auditor / legal counsel.
Documentation ready for audits
contract-scoped
We produce a documentation set ready for regulatory audits with a residency policy, classification matrix and compliance audit checklist.
Measurable risk and compliance indicators
measured target
We make risk, control and compliance indicators visible with measurement targets and an evidence file.
Delivery model
Delivery approach
How we phase the service across delivery, governance, and connected service pillars.
01
We start with a data inventory and classification (personal, sensitive, critical, general), identifying residency-requiring data under KVKK, BDDK and BTK and producing a compliance map.
02
We carry out a technical/commercial assessment of local cloud providers (Türk Telekom Bulut, Turkcell, local DC providers) and design data transfer and encryption policies together with a hybrid connectivity architecture (ExpressRoute, IPsec VPN, SDCI, peering).
03
We deliver a data residency policy, sovereign-cloud HLD/LLD documents, a migration plan and a compliance audit guide, and provide pre-audit preparation and post-audit action plan support for KVKK and sector audits.
Operating contexts
Example operating contexts
Illustrative surfaces where this service is commonly activated.
Residency map for regulated data
Producing a clear map of local residency requirements for KVKK personal data, BDDK financial data and BTK communication data.
Hybrid local + global cloud distribution
A hybrid strategy that keeps only residency-requiring data and applications in the local cloud and the rest in the global cloud.
Audit preparation and advisory
Pre-audit preparation for KVKK and sector audits, technical advisory during the audit, and a post-audit action plan.
DEPTH
Technical and compliance depth
This service's depth on sector-specific technical and compliance topics.
Data classification and residency policy
Classification of KVKK categories, BDDK sensitive data and BTK communication data; design of residency controls with data transfer and encryption policies.
Local provider and hybrid connectivity
Comparative assessment of Turkey-based providers' SLAs, certifications and redundancy; secure hybrid connectivity with ExpressRoute, IPsec VPN, SDCI and peering.
Regulatory compliance alignment
Documentation aligned with KVKK, BTK and BDDK checklists; certification and the final compliance/legal assessment are left to the auditor and legal counsel.
What It Solves
Regulatory mandates, national security requirements, and cross-border data transfer restrictions impose stringent constraints on where enterprise data can be processed and stored. Organisations in regulated sectors and critical national infrastructure face significant penalties and reputational risk from non-compliant cloud architectures. Our Sovereign Cloud and Data Residency practice designs, deploys, and governs cloud environments that satisfy data localisation requirements while maintaining the agility benefits of modern cloud platforms.
Data residency architecture design for GDPR, PDPL, KVKK, and sector-specific mandates
Sovereign cloud deployment on local cloud regions and certified sovereign platforms
Data classification and tagging framework with residency policy enforcement
Cross-border data transfer risk assessment and SCCs/BCRs advisory
Key Benefits
Benefit
Improve quality indicators through baselines, acceptance criteria, and reviewed evidence
Benefit
Make operational speed, resilience, and response outcomes measurable through contracted scope and acceptance criteria
Benefit
Improve quality indicators through baselines, acceptance criteria, and reviewed evidence
Sovereign Platforms
Microsoft Azure Sovereign, OVHcloud, Deutsche Telekom Open Telekom Cloud
Compliance Frameworks
GDPR Art. 44-49, ISO 27701, NIS2 Directive, KVKK
Encryption Standards
FIPS 140-2/3, AES-256-GCM, customer-managed keys (CMK)
Data Classification
Microsoft Purview, Varonis, Forcepoint Data Classification
Scope
Our sovereign cloud engagement spans legal and regulatory analysis, data flow mapping, architecture design, technical implementation, and ongoing compliance monitoring. We work in conjunction with your Data Protection Officer and legal counsel to ensure technical controls are aligned with legal interpretations of applicable regulations. The scope includes existing cloud workloads, SaaS portfolio review, and network border control implementation.
Data flow mapping and processing inventory (ROPA) aligned to GDPR/KVKK requirements
Network border control implementation with traffic inspection and egress filtering
Customer-managed encryption key (CMK) implementation with HSM integration
Continuous compliance monitoring with automated policy drift alerting
Key Benefits
Benefit
Make risk and response indicators visible through measured controls, rehearsed playbooks, and evidence review
Benefit
Improve quality indicators through baselines, acceptance criteria, and reviewed evidence
Benefit
Turn the outcome into a measurable target with baseline, owner, and review cadence
Azure Private Link, AWS VPC endpoints, VPN with local termination
Monitoring
Microsoft Defender for Cloud, AWS SecurityHub, GCP Security Command Center
Legal Instruments
SCCs (2021/914), BCRs, adequacy decisions, derogations per GDPR Art. 49
Deliverables
Sovereign cloud deliverables are designed to serve dual audiences: technical teams responsible for implementation and maintenance, and compliance officers who must demonstrate regulatory adherence to auditors and regulators. All evidence packages are formatted for direct submission to relevant Data Protection Authorities and certification bodies.
Data flow diagram and ROPA documentation aligned to GDPR/KVKK Article 30
Sovereign architecture design document with jurisdiction boundary maps
Compliance evidence package for regulatory audit submission
Ongoing monitoring runbook with residency drift remediation procedures
Key Benefits
Benefit
Reduce DPA audit response time from weeks to days with pre-built evidence packages
Benefit
Enable data sovereignty certifications such as CISPE to strengthen customer trust in regulated sectors
Benefit
Maintain zero data residency violations with automated guardrails and monthly compliance reports
Documentation Standard
ISO 27701 privacy information management, GDPR Art. 30
Evidence Formats
PDF/A for regulatory submission, JSON for automated SIEM ingestion
Audit Trail
Immutable audit logs in sovereign storage with cryptographic integrity proof
What is the difference between a sovereign cloud and a standard regional cloud deployment?
A sovereign cloud goes beyond regional data residency by ensuring that cloud operations personnel, infrastructure management, and administrative access are all located within the national jurisdiction. This addresses not only where data is stored but also who can access it and under which legal system they operate, which is a critical distinction for government and regulated industries.
How do you handle SaaS services that inherently transfer data outside the country?
We conduct a SaaS residency risk assessment for each service in scope, evaluating data flows, sub-processor locations, and contractual mechanisms such as Standard Contractual Clauses or Binding Corporate Rules. Where a SaaS service cannot meet residency requirements, we identify compliant alternatives or architect data isolation patterns that prevent sensitive data from leaving the jurisdiction.
Can we use hyperscaler public cloud services and still meet data residency requirements?
Yes, with careful architecture. Major hyperscalers provide sovereign cloud options and data residency add-ons in many jurisdictions. We design architectures that leverage these controls, implement customer-managed keys to prevent provider access, and use Private Link or equivalent to prevent data traversal over public internet paths. The design is validated against your specific regulatory requirements.
How do you address data residency for AI and machine learning workloads?
AI workloads present unique residency challenges because training data, model weights, and inference requests may each have different flows. We apply data residency controls at each layer: enforcing training data locality, deploying models in-region, and using private endpoint configurations for inference APIs. We also assess any telemetry or model improvement data flows for compliance.
Who retains ownership of the compliance artefacts and evidence packages?
All compliance artefacts are the exclusive property of the client organisation. We transfer all documentation, evidence packages, and automation scripts at project handover with no retention of sensitive client data. Our engagement model is structured so that the client can sustain and extend the compliance programme independently after the initial engagement.
How often do compliance controls need to be reviewed as regulations change?
We recommend a quarterly review of technical controls against regulatory updates, with an annual comprehensive re-assessment aligned to your DPIA cycle. We maintain a regulatory change monitoring service that proactively notifies clients of upcoming changes to GDPR guidance, NIS2 implementing acts, and national data protection law amendments that may affect their architecture.
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