An investigation found that more than 360 inmates were hacked into the JPay system to increase their account balances by nearly $ 225,000 in credits, said Jeffrey Ray, a spokesman for the Idaho correction department.
JPay, a CenturyLink service, allows inmates to download games and music to portable players, the statement said.
State Department Prison authorities, JPay and CenturyLink, found that inmates in five different prisons in Idaho had increased the credit on their accounts.
Fifty of the inmates gave out loans worth more than $ 1,000, the statement said. An inmate managed to get loans worth nearly $ 10,000, the highest amount.
"This behavior was intentional, not accidental," Ray said in the statement. "It required knowledge of the JPay system and several actions by each inmate who exploited the vulnerability of the system to improperly credit his account."
The Idaho DOC emphasized the fact that taxpayer money was not involved in the hack and no real money was stolen. The inmates simply gave themselves extra credits to gain access to entertainment and e-mail.
In a statement, JPay said that "the vast majority of people use our secure technology appropriately," and that inmates can access educational programs and entertainment and communicate with their family members.
"In this case, a number It has been discovered that individuals have improperly credited their accounts by creating credits to buy content," the statement says. "Once the problem was discovered, it was quickly corrected."
To date, JPay has been able to recover $ 65,31
The inmates involved were charged with a disciplinary offense that could lead to a temporary loss of privileges.
CNN's Joe Sutton and Tina Burnside contributed to this report.