Sam Bankman-Fried, who is now serving a 25-year sentence, has been transferred to Federal Correctional Institution Victorville Medium II in California.
The facility is known for housing violent offenders and has a history of inmate-on-guard assaults.
The transfer follows a period of solitary confinement for Bankman-Fried due to an unauthorized interview he gave with journalist Tucker Carlson.
FCI Victorville has a reputation for being a volatile prison, with previous incidents of violence reported.