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Virtual data rooms (VDRs) have fundamentally transformed the way confidential documents are handled in M&A. They make it possible to provide large volumes of data securely, in a structured manner, and from any location—including granular user permissions, logging, and communication features. As processes accelerate and data volumes grow, expectations regarding stability, usability, and—above all—security are rising. The technology used to exchange sensitive information is increasingly becoming the critical backbone of every transaction.
Rising Data Volumes – Growing Responsibility
As the pace of M&A processes accelerates, so do the demands placed on digital platforms. Many VDR providers are responding with comprehensive feature sets, rapid deployment times, and the first AI-powered tools. But where convenience and speed dominate, a risk looms: Confidential financial data, IP-sensitive information, and personally identifiable content require maximum control. If security incidents occur, not only do processes come to a standstill—liability and reputational risks also ensue.
Security issues are often underestimated
In practice, the urgency of rapid deployment often overshadows consideration of the legal framework. Particularly in international transactions, the question arises as to which jurisdiction governs where data is stored and processed. This is precisely where the concept of data sovereignty becomes relevant—the ability to fully control the storage location, access rights, and technical infrastructure.
Even with European hosting, a risk exists if the provider is part of a non-European corporate group. U.S. providers such as Microsoft or Amazon, for example, are subject to the CLOUD Act and may be compelled to hand over European data—with potential consequences for compliance and the protection of legitimate expectations.
Data Sovereignty as a Selection Criterion for VDR Providers
Despite its importance, data sovereignty is often given only secondary consideration in the M&A environment. Yet it should be a key criterion when selecting a virtual data room, especially for sensitive or regulated transactions. A data-sovereign VDR ensures that:
hosting takes place exclusively in Germany or the EU (contractually guaranteed, e.g., via the General Terms and Conditions of Use),
there are no corporate structures in third countries,
the provider’s technical access capabilities are either excluded or strictly limited,
compliance and legal relationships are transparently documented,
a comprehensive security and support concept is available.
Such requirements are becoming increasingly important not only for sellers but also in discussions with buyers—particularly in cross-border transactions subject to European data protection law.
Practical Recommendations for Selecting a VDR
Today, M&A teams should not evaluate data rooms based solely on price or user-friendliness. Important evaluation criteria include:
Hosting in certified EU data centers with clear data protection requirements
Existing security certifications such as ISO 27001, BSI C5, SOC 2, or ISO 22301
German-language support and direct contact
Extensive market experience and references
Transparent documentation of the security architecture
These aspects should be addressed in the early planning phase of a transaction—not just during implementation.
Conclusion: Data sovereignty as an expression of responsibility
Virtual data rooms are indispensable today for professional M&A processes. At the same time, they are no longer merely an infrastructure issue, but a strategic factor. Those who prioritize control not only protect confidential information but also increase the resilience of the entire deal flow. Data sovereignty is therefore not a technical detail—but a hallmark of corporate responsibility.
This is a guest post by Moritz Ober, Customer Success Manager at netfiles GmbH.
