Mario Brero, head of a Swiss investigation firm, is accused of having spied on various European personalities on behalf of the United Arab Emirates. At least three investigations, in France and Switzerland, target Mario Brero.

According to Mediapart, the private Swiss agency would have sent between 2017 and 2020 to the Abu Dhabi intelligence services. The Muslim Brotherhood is designated by the Emirates, as by many countries in the region, as a terrorist organization. In France, this list would have notably contained the former socialist presidential candidate Benoît Hamon, the deputy mayor of Marseille and former senator Samia Ghali, the La France insoumise party of Jean-Luc Mélenchon, and the National Center of Scientific Research (CNRS) The list unduly harms her security and reputation, as well as those of the newspaper, says Rokhaya Diallo, the author and anti-racist activist who filed a complaint in August, according to her lawyer.