Iranian charged with Game of Thrones hack
Behzad Mesri is accused of computer fraud, wire
Acting US attorney Joon Kim told a news conference in New York that Mr Mesri was in Iran.
He said that even though US authorities could not arrest him immediately, Mr Mesri would face consequences.
"He will never be able to travel outside of Iran without fear of being arrested and brought here," Mr Kim said.
Prosecutors allege Mr Mesri, who has been added to the FBI's most wanted list,had worked for Iran's military and been involved in a campaign to deface US websites.
Mr Kim said he was an "experienced and sophisticated hacker who has been wreaking havoc on computer systems around the world for some time".
Prosecutors say Mr Mesri began conducting online reconnaissance of HBO's computer networks and employees in May 2017.
