The first sign something was wrong came earlier this month, when staff at Designate – which has worked with clients such as Kuoni and Accor Hotels – noticed their emails had stopped working.
A banner had also appeared on the company’s website branding it “seized” by the United States Department of Justice, NYPD and United States Department of Homeland Security.
“You couldn’t make it up,” said Jason Triandafyllou, a partner at Designate. “I first thought it was a hack.”