A suspected ShinyHunters hacking group member known online as "Rey" has reportedly been detained in Jordan and is cooperating with the FBI to help locate other members of the extortion group.
According to Reuters, Jordanian authorities detained Rey, identified as Saif al-Din Khader, this week, with two sources saying he was taken into custody on Tuesday.
Two sources familiar with the arrest told Reuters that Khader is now helping the FBI and international law enforcement agencies locate other group members.
One source said Khader is walking law enforcement through his electronic devices and digital communications to help identify and locate his alleged co-conspirators.
"His cooperation is critical to ongoing efforts to arrest these hackers," a source told Reuters.
The reported detention comes amid an FBI crackdown on ShinyHunters following the group's cyberattack on the bureau.
In September, ShinyHunters told BleepingComputer that it breached FBI systems using an alleged Oracle PeopleSoft zero-day vulnerability before spreading laterally into FBI-managed AWS GovCloud systems.
The threat actors claimed they stole between 2TB and 3TB of data, including information belonging to current and former FBI employees, job applicants, medical and psychiatric information, and records from internal services.
BleepingComputer has not independently verified the alleged zero-day, lateral movement, or volume of stolen data. The FBI previously confirmed that it was investigating claims of unauthorized activity but did not confirm that data had been stolen.