Changpeng Zhao, jailed in the United States for a financial crime and pardoned by President Trump, is now living a gilded life in the United Arab Emirates.

© Laura Boushnak for The New York Times

Federal prosecutors said proceeds from the sale of Iranian oil flowed through Binance, the world’s largest crypto exchange, to finance terrorism.

The detentions of the workers, who have been released, are a sign of legal pressure that the world’s largest crypto exchange faces in the Emirates, which is home to its main regulator.

© Katarina Premfors for The New York Times