Everything You Need to Know About Evaluating the Sovereign Cloud
- Expert Cloud
- 1 day ago
- 4 min read
The adoption of cloud computing has become essential for businesses. However, the matter of data sovereignty and the security of cloud infrastructures remains a key concern. In Europe, cloud sovereignty assessment has emerged as an essential tool for ensuring compliance, security, and control over hosted data. In this post, our expert offers a detailed exploration of what cloud sovereignty assessment entails, its challenges, methods, and benefits.
Understanding the Evaluation of Sovereign Cloud
The sovereign cloud assessment is a rigorous evaluation process for cloud services designed to verify their compliance with digital sovereignty requirements. It involves a thorough review of the infrastructure (including its locations), application layers, security policies, data management procedures, and protection mechanisms implemented by cloud service providers.
The primary objective is to ensure that sensitive data remains under European control, in accordance with applicable regulations, such as the GDPR and the Cyber Act.
The assessment also evaluates the resilience of systems against cyber threats and the transparency of providers.
Why is this assessment essential?
Protection of Sensitive Data: Companies must ensure that their data is not accessible to unauthorized foreign entities..
Regulatory compliance: Comply with European data protection laws.
Customer and partner trust: A successful assessment strengthens suppliers’ credibility and reassures users.
Risk management: Identify vulnerabilities and anticipate security incidents
Key Steps in a Sovereign Cloud Assessment
The evaluation of a sovereign cloud takes place in several phases, each of which provides specific information about the quality and security of the cloud service.
1. Legal Analysis
This step involves reviewing the supplier’s internal policies, certifications or qualifications, contracts, and commitments related to data management. In particular, the following are checked:
The location of data centers and hosting infrastructure.
The location of the parent company’s headquarters or operating subsidiaries
Confidentiality and reversibility clauses; verification of supplier security (supply chain)
Backup, restore, and redundancy procedures
2. Technical Evaluation
It includes an analysis of infrastructure vulnerabilities, configuration, and access controls. The purpose is to verify that the infrastructure is robust and that security mechanisms are effective.
3. Governance Oversight
We analyze incident management, operational traceability, and compliance with international standards (ISO 27001, ISO 9001, NIS2, etc.)
4. Report and Recommendations
Once the assessment is complete, a detailed recommendation report is provided. It highlights strengths and weaknesses and proposes corrective measures to improve the security and sovereignty of cloud solutions and services.
Specific Criteria for a Sovereign Cloud in Europe
In Europe, the only compliance framework for cloud sovereignty is the CSF (Cloud Sovereignty Framework), launched by the European Commission in October 2025 for the public sector. It is based on the calculation of a “sovereignty effectiveness assurance level” (SEAL), designed to assess whether service providers meet the defined thresholds for sovereignty and resilience. These thresholds are described in the reference framework and correspond to the highest levels of data sovereignty (SEAL-2), technological autonomy (SEAL-3), and total sovereignty (SEAL-4).
An overall sovereignty score is calculated based on 48 specific criteria. Each criterion is clearly defined, as is the corresponding scoring methodology. These criteria are grouped into eight categories, reflecting the main sovereignty objectives: strategic, legal and jurisdictional, data and AI, operational, supply chain, technological, security and compliance, and environmental sustainability.
The Cloud 360 framework provided by B2CLOUD is designed for all businesses, both private and public. It is based on more than 130 criteria covering operational, technological, legal, security, governance, and financial aspects. For example, we analyze cloud contract termination and reversibility guarantees in the event of a change in capital structure or equity (such as a takeover by a non-European company).
We also provide a rating system that distinguishes trusted cloud providers from sovereign ones.
How to Choose a Service Provider for a Sovereign Cloud Assessment?
Choosing the right service provider is a crucial step. The provider must have cutting-edge technical expertise, in-depth knowledge of European regulations, and a rigorous methodology.
Vertical experience: We have previously worked with companies in critical sectors or those that handle sensitive data. We have developed specialized expertise in these sensitive sectors and have created assessment and rating matrices tailored to them.
Independence: The evaluation must be impartial, with no conflict of interest involving cloud providers. We are 100% impartial with respect to providers in the market..
Use of Automated Tools: Solutions based on artificial intelligence enable faster and more accurate evaluations. Our patented adaptive AI method allows us adapt the weighting of our evaluation criteria based on the learn of changes and different contexts (legal, technical, financial).
Clear, actionable reports: We provide specific recommendations with tailored scoring.
Tangible Benefits
Performing a sovereign cloud assessment offers several tangible benefits for businesses and service providers.
Enhanced Security: Identifying vulnerabilities and implementing corrective measures.
Cost Optimization: Avoiding expenses related to incidents or non-compliance.
Enhanced Reputation: Building trust with customers and partners.
Optimizing decision-making: Choosing a cloud service tailored to your needs and compliant with legal and data processing requirements..
Supporting digital sovereignty: Contributing to the development of a secure European cloud ecosystem, such as Eurostack.
Outlook and Trends
The cloud landscape is evolving rapidly. Regulations are becoming stricter and technologies are advancing. As a result, sovereign cloud assessments must constantly adapt. That is the path we are following at B2CLOUD.
Integration of artificial intelligence: To optimize recommendations.
Continuous learning: Moving from a one-time evaluation to an ongoing, iterative assessment.
Strengthened standards: Integration of all European standards in our matrices
European collaboration: Harmonization of practices among European businesses.
Assessing sovereign cloud is a strategic tool for securing data and ensuring control over it. By understanding the challenges, methods, and benefits involved, you can make more informed decisions and strengthen the trust your customers and partners have in your cloud infrastructure and services.
