The European Union has been shaken by a diplomatic fraud scandal that has quickly escalated into one of the bloc’s most serious crises in decades.
Belgian police, acting on behalf of the European Public Prosecutor’s Office, carried out dawn raids on December 2, targeting the European External Action Service in Brussels, the College of Europe in Bruges, and several private residences.
The raids led to the detention of Federica Mogherini, the EU’s former foreign policy chief and current rector of the College of Europe, Stefano Sannino, the former secretary-general of the EEAS and most recently director-general for the Middle East, North Africa and Gulf department at the European Commission, and Cesare Zegretti, a senior official at the College of Europe.
Investigators suspect that the tendering process for the EU Diplomatic Academy, overseen by the College of Europe, was manipulated, raising allegations of procurement fraud, corruption, conflicts of interest, and breaches of professional secrecy.
Political Fallout and Institutional Responses
The scandal immediately reverberated across Brussels.
Ursula von der Leyen, the Commission president, moved quickly to distance herself from the affair, with her officials stressing that the EEAS is a separate institution and that the investigation does not implicate the Commission directly.
Von der Leyen’s allies argued that criticism of her was misplaced. Particularly as she is focused on securing support for Ukraine at a crucial summit in December. At the same time, Kaja Kallas, the current EU High Representative, also sought to separate her mandate from the allegations. In a letter to EEAS staff, she described the claims as deeply shocking but emphasized that they predated her tenure. She highlighted reforms introduced since her appointment in December 2024. Including a new Anti-Fraud Strategy and stronger cooperation with OLAF and the EPPO.
The fallout was swift.
On December 3, Sannino resigned from his Commission role, announcing that he would retire at the end of the year.
In his farewell message, he said it was inappropriate to continue under the circumstances but expressed confidence in the judicial process. Mogherini followed suit the next day, resigning as rector of the College of Europe and director of the EU Diplomatic Academy. In her statement, she insisted she had always carried out her duties with fairness and integrity but acknowledged that stepping down was necessary. Both figures were released after questioning and remain presumed innocent until proven guilty.
International Reactions
The scandal has drawn international attention.
In Washington, U.S. Deputy Secretary of State Christopher Landau used social media to criticize Mogherini, recalling her past description of Cuba as a “one-party democracy” and accusing her of supporting regimes hostile to American interests.
His remarks underscored how the case has become not only a European crisis but also a point of transatlantic tension. Within Europe, the affair has reignited debates about the credibility of Belgian prosecutors, whose handling of previous scandals such as Qatargate in 2022 and the Huawei lobbying probe in 2025 was criticized as heavy-handed but ineffective. EU staff unions have warned that the allegations could have a disastrous impact on public trust in the institutions. While Euroskeptic and far-right parties have seized on the scandal to attack Brussels’ legitimacy.
The timeline of events illustrates how quickly the crisis unfolded.
On December 2, raids and detentions shocked Brussels.
By December 3, political pressure mounted, Sannino resigned, and Kallas sought to reassure staff. On December 4, Mogherini stepped down, von der Leyen distanced the Commission from the affair, and international criticism intensified. The places at the center of the scandal have become symbols of the EU’s struggle to maintain integrity. The people involved represent the breadth of the crisis, from the highest levels of EU diplomacy to international scrutiny.
This scandal, following closely on the heels of Qatargate and the Huawei probe, has reinforced perceptions of systemic vulnerability within the EU’s institutions.
It is not merely about individual wrongdoing but about the credibility of the bloc’s governance structures.