Policy

ICC drops Microsoft Office for European open source alternative

The International Criminal Court is officially breaking away from Microsoft Office. In a move that signals a deeper shift in European digital sovereignty, the court confirmed it will migrate to Open Desk, a German-built open source platform designed for public institutions.

At first glance, this might sound like a simple software swap. But in the world of global politics and cybersecurity, it feels closer to a geopolitical statement. The ICC’s decision underscores Europe’s growing discomfort with depending on American tech giants for critical government operations.

The change comes after years of tension between the court and the United States. During Donald Trump’s presidency, Washington imposed sanctions on the ICC’s chief prosecutor, Karim Khan. At one point, Microsoft even deactivated Khan’s email account, though the company later denied it. The episode highlighted just how fragile the digital ties between international bodies and US-based cloud providers can be.

A Microsoft spokesperson told Euractiv that the company “values its relationship with the ICC” and believes nothing will prevent it from continuing to serve the court. But the tone of Europe’s digital agenda has shifted. Sovereignty is the new keyword in Brussels.

Open Desk was developed by the German Centre for Digital Sovereignty of the Public Administration, better known as Zendis. It is part of a broader European effort to build open, secure, and independently maintained software for public institutions. Four EU countries recently joined forces to establish a shared framework for digital sovereignty, a foundation that Open Desk directly supports.

The ICC’s move could spark a domino effect. Other international organizations and EU agencies are already evaluating alternatives to US software providers. The reasoning is simple: political stability should not depend on a company’s terms of service or a country’s foreign policy.

The shift also fits into a wider European narrative. From cloud computing to defense AI, the idea of strategic autonomy has become central to EU tech policy. Projects like Gaia-X and now Open Desk reflect a growing realization that Europe cannot lead in regulation alone, it must also lead in infrastructure.

Still, practical questions remain. Can an open source suite match Microsoft’s scale, usability, and integrations? For global institutions like the ICC, collaboration happens across borders and jurisdictions, often under strict confidentiality. Rebuilding those workflows within an open source environment will require both trust and investment.

Supporters of the move see this as the beginning of a longer, necessary transition. As one digital sovereignty advocate in Berlin put it, “We have regulated Big Tech for years. Now we are finally learning how to replace it.”

The ICC’s decision is more than a procurement choice. It is a signal that Europe’s era of digital dependence is starting to end. The question is whether its open source future will be as seamless as its ambitions suggest.

Read the original coverage at Euractiv.

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