Consideration has been given to utilizing cell phone jammers inside of prison walls to render them ineffective. Once inside prison walls, the units end up within the fingers of inmates who purchase them with cash, blackpass biz which can also be contraband in most prisons. In South Carolina in September 2012, an inmate using a contraband cellphone alerted authorities about an officer being held hostage, resulting in that officer's rescue. Federal prosecutors charged five South Carolina prisoners with conning at the least 442 service members out of a complete of greater than half a million dollars in November 2018.
Two different South Carolina prisoners, John William Dobbins and blackpass.biz Carl Richard Smith await trial for a number of scams operated using contraband cell telephones out of Lee Correctional Institution, together with one catfishing rip-off that ended in the suicide of military veteran Jared Johns.