A Canadian Intern Was Arrested for Alleged Spying at NATO. Here's What We Know.

The RCMP has confirmed it will help Belgian authorities investigate a Canadian intern suspected of spying at NATO's military headquarters in Mons, Belgium.
The intern, identified by a group of European news organizations including Follow the Money and Le Soir as "Claire Z.," was arrested the previous week on suspicion of spying for a third country. She is being held in jail while the case moves forward, The Globe and Mail reported on July 30, 2026.
Claire Z. arrived in Mons in July 2025 to start an internship in the IT department at NATO's Supreme Headquarters Allied Powers Europe, known as SHAPE. She extended her initial six-month term to a full year. She speaks Chinese and English and was described as an expert in artificial intelligence. In 2022, she earned a master's degree in computer science from a Canadian university and has written several academic papers.
The case came to light through SHAPE's own internal security team. According to the Follow the Money report, Claire Z. had been seen lingering around NATO buildings and often asked hypothetical questions about how someone might break security rules. SHAPE shared that information with Belgium's military intelligence service, which passed it to the Belgian federal prosecutor's office. The prosecutor's office then opened an investigation.
Before her NATO internship, Claire Z. was given security clearance by the Canadian government. That process involved vetting by the Canadian Security Intelligence Service (CSIS) — Canada's main spy agency — and a criminal record check by the RCMP. Security clearance is essentially a government's way of saying it has checked someone's background and decided they can be trusted with sensitive information or access to secure locations.
Global Affairs Canada spokesperson Brittany Fletcher stated that the Government of Canada, based on CSIS assessments, makes the final decision to grant, deny, or revoke security clearances for Canadians seeking positions with international organizations including NATO. The RCMP stated it does not provide advice or recommendations about a person's employability or security status, and that final decisions about security clearance remain the responsibility of the requesting organization. In other words, the clearance decision fell to Global Affairs based on CSIS assessments, while the RCMP's role was limited to checking for a criminal record.
RCMP spokesperson Andrew DiRienzo said the force "is aware of a Canadian citizen being detained by Belgian police and remains committed to working with domestic and international partners," but does not comment on investigations conducted by other countries.
The Canadian federal government declined to comment on whether the suspect had worked as a civil servant in Ottawa after European Union media reported she had worked for Canadian government departments. That gap leaves open questions about how much access she had to classified or sensitive material within the federal government before she was cleared for the NATO posting.
Several things about this case remain unresolved from a Canadian perspective. The identity of the third country Claire Z. is alleged to have spied for has not been confirmed by Belgian or Canadian authorities. The European reporting has not been officially confirmed by NATO or the Belgian federal prosecutor's office. And the federal government's refusal to confirm or deny her prior employment in Ottawa leaves a gap in the public record that will be hard to maintain if the case goes to trial in Belgium.
The broader context here is about the security system itself. The clearance process for Canadians placed at international organizations runs through CSIS assessment and Global Affairs decision-making, with the RCMP providing a criminal record check. Whether that process is good enough, and whether it properly accounts for the risks at allied headquarters, are questions that will be put to ministers and national security agencies the next time Parliament sits.
The case also puts Canada in a difficult diplomatic spot. NATO allies will expect a clear explanation of how a Canadian citizen received clearance to work inside one of the alliance's most sensitive headquarters. Belgium, as the host country for SHAPE, has the lead on the criminal investigation. The RCMP's role is to support, not to lead. How much information comes back to Ottawa, and how much is shared publicly, will depend on decisions made by Belgian prosecutors and on whether allied intelligence services are willing to share their findings with Canadian counterparts.
For now, the suspect is in jail in Belgium, and the RCMP has formally committed to helping. Everything else is, at this stage, either allegation or silence.


