Behind the Crypto Broker Accused of Enabling Ransomware Hackers

A cryptocurrency broker that the Biden administration considers a key cog in the recent ransomware epidemic is legally registered in the Czech Republic but doesn’t appear to have an office there. It may be operating out of Moscow’s tallest skyscraper despite its not being listed at the address. It earned the distinction last month of being the first crypto exchange to be blacklisted by the U.S. as governments try to stem further attacks. And while it denies any part in the recent spate of cyber crimes, experts say it’s a prime example of a shadowy corner of the industry that ...