Sovereign Cloud Strategy
Strategic advisory for European institutions navigating the transition from US-controlled cloud infrastructure to EU-sovereign alternatives, ensuring jurisdictional independence without operational compromise.
Overview
AWS, Azure, and Google Cloud collectively host the majority of European institutional data. For Private Equity firms, Family Offices, and sovereign wealth entities, this creates a structural legal risk that contracts cannot mitigate. The US CLOUD Act compels US-incorporated entities to produce data upon valid US legal process, regardless of physical location. European institutions storing deal flow data, LP communications, or portfolio financials on US-controlled infrastructure — even within EU data centres — remain exposed to compelled disclosure without knowledge or consent.
The Schrems II ruling (CJEU Case C-311/18) invalidated the EU-US Privacy Shield and imposed stringent requirements on alternative transfer mechanisms. Standard Contractual Clauses require Transfer Impact Assessments demonstrating essentially equivalent protection — extraordinarily difficult for US-controlled infrastructure given FISA Section 702. The EU-US Data Privacy Framework (July 2023) attempts to address this through executive order commitments, but its predecessors were invalidated twice and the same structural tensions persist.
For European institutional investors, this is not abstract. Deal flow intelligence, LP identity data, and portfolio financials carry fiduciary obligations. The prospect of foreign government access without proportionate judicial oversight represents a governance failure that LPs increasingly scrutinize. Sovereign cloud infrastructure is becoming a competitive differentiator in European fundraising, not merely a compliance obligation.
Intarmour's advisory provides the analytical frameworks, technical architecture, and implementation planning for genuine data sovereignty. We distinguish between data residency (physical location) and data sovereignty (exclusive legal framework) — a distinction many providers deliberately obscure. Our advisory covers the full lifecycle from assessment through provider selection, migration, and ongoing governance.
Advisory Scope
Data Sovereignty Assessment
Data sovereignty audit of existing cloud infrastructure to identify jurisdictional exposure. We map every data processing relationship against CLOUD Act, FISA Section 702, and equivalent extraterritorial authorities to quantify foreign government access risk across your technology estate.
Cloud Provider Evaluation
Structured assessment of EU-sovereign cloud providers against institutional requirements. Corporate chain verification, operational staffing analysis, jurisdictional risk scoring, and capability benchmarking against US hyperscaler equivalents.
Migration Architecture Design
Technical architecture for transitioning to EU-sovereign infrastructure. Phased migration planning, application dependency mapping, data transfer protocols, and rollback procedures ensuring zero operational disruption.
Compliance Framework Mapping
Alignment of sovereign cloud architecture with GDPR, NIS2, DORA, and sector-specific requirements. Documentation for regulatory inspection, LP due diligence, and external audit.
Vendor Contract Review
Analysis of existing cloud agreements for sovereignty-compromising provisions: clauses permitting foreign government data access, subprocessor arrangements introducing jurisdictional exposure, and terms incompatible with sovereignty requirements.
Hybrid Cloud Strategy
Architecture for selective sovereignty where full migration is impractical. Data classification determining which workloads require sovereign infrastructure, secure interconnection between environments, and flow controls preventing sovereignty boundary violations.
Key Sovereignty Considerations
Schrems II Implications
Schrems II requires assessing data protection adequacy by substance, not merely formal legal protections. FISA Section 702 and EO 12333 authorise non-US person surveillance without proportionate judicial authorisation. Institutions relying on SCCs for US transfers bear the burden of demonstrating supplementary measures render surveillance practically ineffective — increasingly difficult as European DPA guidance becomes more prescriptive.
CLOUD Act Exposure
The CLOUD Act extends US jurisdiction through corporate control rather than geography. Any entity in a US parent's ownership chain can be compelled to produce data regardless of storage location. The European subsidiary faces conflicting GDPR obligations with no reliable resolution mechanism. Any data processed by a provider with US corporate parentage is potentially accessible to US government authorities.
EU-US Data Privacy Framework Limitations
The DPF (July 2023) relies on executive order commitments that can be modified without legislative action. The underlying surveillance authorities remain unchanged. For institutions with long-duration data obligations (estate planning, LP relationships, multi-generational family office data), dependence on a framework with uncertain durability represents strategic risk that sovereign infrastructure eliminates entirely.
Swiss Adequacy and Differentiation
Switzerland maintains EU adequacy under GDPR Article 45. The revised nFADP (September 2023) aligns with GDPR within a legal framework without US-equivalent extraterritorial surveillance. Swiss-hosted infrastructure by Swiss-incorporated entities provides an attractive sovereignty option combining strong data protection, political stability, and jurisdictional independence. Our advisory evaluates Swiss alongside EU-member-state alternatives against each client's specific requirements.
Multi-Family Office — Sovereign Infrastructure Transition
Challenge
A European multi-family office had consolidated technology on a US hyperscaler over five years: wealth planning data, portfolios, tax documentation, and personal family information. Following a GDPR regulatory inquiry and LP due diligence questions about CLOUD Act exposure, the office recognised its infrastructure created jurisdictional risk incompatible with fiduciary obligations. Migration could not disrupt daily operations.
Solution
Eight-week engagement: sovereignty assessment mapping every processing relationship, identifying twenty-three non-sovereign SaaS dependencies, and classifying assets by sovereignty criticality. Evaluated four EU and two Swiss providers. Phased migration: sovereign-critical data (personal information, estate planning, Investment Committee materials) first to EU-sovereign infrastructure with zero-knowledge encryption, then operational systems and communication platforms.
Outcome
Full EU data residency across all categories. Complete operational continuity — no service interruptions or productivity loss. Sovereignty documentation satisfied both the regulatory inquiry and LP due diligence. Two principal families cited sovereign infrastructure as a factor in expanding AUM. Total duration from assessment through migration: fourteen weeks.
Engagement Model
Fixed-scope advisory, typically four to eight weeks depending on infrastructure complexity and data processing relationships. Deliverables: sovereignty gap analysis, provider evaluation matrix, migration architecture, compliance mapping, and implementation roadmap with risk-assessed timelines.
Led by a senior advisor with direct experience in European data protection law, cloud architecture, and the operational requirements of Private Equity firms and Family Offices. Strict independence from cloud providers — recommendations reflect client interests exclusively. All materials classified strictly confidential under NDA from initial consultation.
Ready for institutional-grade
cybersecurity?
Confidential assessments for qualified Private Equity and Family Office entities requiring sovereign defense infrastructure.