Bankman-Fried's net worth rose to $26 billion, two years after launching a hedge fund that let users buy and sell digital assets such as bitcoin
"Never has the threat been so high," Valls told France Inter radio, noting the fact that hundreds of French nationals were now in Syria where they risked being radicalized.
Valls was speaking a day after authorities said they had arrested a 24-year-old Algerian national in Paris suspected of the murder of a woman at the weekend and an aborted plan to launch an armed attack on at least one church.