PARIS ― French Interior Minister Bruno Retailleau is organizing an emergency meeting with cryptocurrency entrepreneurs in the country to discuss their security after a brazen kidnapping attempt on Tuesday.

“I will be bringing together at Beauvau [France’s interior ministry] the cryptocurrency entrepreneurs, there are a few in France, to work with them on their security, to make them aware of the risks, and to take together measures to protect them,” Retailleau said in an interview with French media Europe1/CNews Wednesday.

On Tuesday, four people attempted to abduct a woman and her son off the street in broad daylight but were stopped thanks to the quick work of those nearby. Much of the ordeal, which took place in Paris’ 11th arrondissement, was caught on camera.

French media reported that the victims were the daughter and grandson of the CEO of French cryptocurrency platform Paymium.

Retailleau said this was the third case of an attempted or successful kidnapping involving the relatives of crypto bosses this year, and that all of them are likely linked. Ledger cofounder David Balland was abducted in January and the father of another crypto entrepreneur was kidnapped earlier this month.

The kidnappers in both of those cases reportedly cut a finger off of their victims to obtain a ransom before releasing them a few days later. Retailleau said the assailants in the early May case also threatened to pierce their victim’s knee with a drill.