Managed Security Services: CISO Does Not Bear Sole Liability
Benedikt Langer
8 min. read In many organisations, the CISO is seen as the person who stands accountable for security. ...
min Reading Time: 8 Minutes
$80 billion will flow globally into sovereign cloud infrastructure in 2026. Europe is doubling its spending to $12.6 billion – and is projected to overtake North America by 2027. These are no longer IT budget line items. They’re strategic capital decisions that belong on the executive leadership table.
Cloud infrastructure was long considered an IT department decision: Which provider delivers the best features at the best price? That era is over. Gartner’s March 11, 2026 report shows sovereign cloud has become a geopolitical issue. Driven by regulatory demands and geopolitical risk, 61% of Western European IT leaders are ramping up reliance on local providers.
For boards, this means: Choosing a cloud provider is no longer a technical call – it’s a strategic inflection point. Signing a five-year contract with a U.S. hyperscaler today locks your company into a jurisdiction that can shift overnight – the CLOUD Act, Schrems III, or escalating political tensions between the EU and U.S. All of this elevates cloud sourcing to boardroom status.
“By 2030, more than 75% of enterprises outside the U.S. and China will have a formal digital sovereignty strategy.”
Gartner, Sovereign Cloud IaaS Forecast, March 2026
The leap is unprecedented: From $6.9 billion in 2025 to $12.6 billion in 2026 – a staggering 83% growth in just twelve months. For context, the entire European IaaS market grows by roughly 25% over the same period. Sovereign cloud is expanding more than three times faster than the broader market.
Gartner forecasts Europe will overtake North America in sovereign cloud spending by 2027 – not because U.S. companies are investing less, but because European regulation is driving demand: NIS2, the EU Data Act, DORA for financial services, and the planned European Health Data Space.
Sovereign cloud isn’t a single product – it’s a spectrum. For executives, distinguishing between tiers is critical:
● Data Residency: Data resides physically within the EU. AWS Frankfurt and Azure West Europe meet this standard – but it’s the bare minimum, not true sovereignty.
● Operational Control: A European company operates the infrastructure and manages cryptographic keys. DELOS Cloud (Microsoft/SAP/Arvato) follows this model: Microsoft technology, operated by Arvato under German law.
● Full Sovereignty: European providers with homegrown technology – OVHcloud, IONOS, Stackit (Schwarz Group). Functionally narrower than hyperscalers, yet free of jurisdictional risk.
Not every CIO is convinced. Skeptics raise valid concerns: European sovereign cloud providers still don’t match the full functional breadth of hyperscalers. Costs run 15-30% higher than AWS or Azure. And innovation velocity lags, constrained by smaller R&D budgets.
For leadership, this is a classic risk-return trade-off: How much is regulatory certainty worth? What does an NIS2 violation cost (fines up to €10 million)? What happens to your data if EU-U.S. relations deteriorate? These questions don’t belong in IT – they belong in the boardroom.
1. Where do our mission-critical data reside – and who holds operational access? Not just physically (which data center?), but jurisdictionally (whose laws govern the provider?). A U.S. hyperscaler falls under the CLOUD Act – even if its data center sits in Frankfurt.
2. What happens if we must switch providers? Vendor lock-in is real. Scrutinize exit clauses, data portability, and actual migration costs. Starting September 2025, the EU Data Act grants you new legal levers for portability.
3. Does our cloud strategy align with the regulatory landscape in three years? NIS2 is just the beginning. DORA for financial services, the European Health Data Space for healthcare, and the AI Act for AI workloads are all coming. Optimizing solely for cost today may force costly rework in 18 months.
Gartner’s March 11 report makes one thing clear: Sovereign cloud is no longer a niche topic – it’s an $80-billion market. Europe is investing with unprecedented urgency. For boards, this means cloud sourcing is not a delegation to the CIO, but a strategic capital decision. Failing to make that choice deliberately doesn’t avoid it – it simply surrenders control.
Yes – typically 15-30% more. But focusing solely on upfront cost misses the bigger picture. Factor in the potential cost of an NIS2 violation (up to €10 million), a GDPR fine, or the expense of escaping vendor lock-in. For regulated sectors – finance, healthcare, critical infrastructure – the sovereign premium often proves cheaper than the compliance risk.
No. EU data residency ≠ sovereignty. As a U.S. corporation, AWS remains subject to the CLOUD Act, granting U.S. authorities access to data – even when stored in Frankfurt. True sovereignty requires operational control by a European entity and key management outside U.S. jurisdiction.
Whenever the decision carries regulatory, geopolitical, or strategic binding implications. A five-year hyperscaler contract binds your company to a foreign jurisdiction. Under NIS2, executives face personal liability for risk management. Neither is an IT decision.
DELOS Cloud is a joint venture by Microsoft, SAP, and Arvato (Bertelsmann). It delivers Microsoft cloud technology, operated by Arvato under German law. It launches commercially in 2026. For organizations needing Microsoft functionality while avoiding U.S. jurisdictional exposure, DELOS offers the most pragmatic sovereign option in the German market.
Not blindly – but evaluate urgently. Recommendation: Classify workloads by data sensitivity. Move business-critical and regulated data (finance, HR, health) to sovereign cloud. Less sensitive workloads (dev/test, marketing) can remain on hyperscalers. This hybrid model is the most realistic path for most DACH enterprises.
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