A prisoner at County Durham's HMP Frankland was found in possession of a USB stick which contained "Islamic" extremist material.
Ali Abdifatah was serving a sentence for grievous bodily harm and attempted robbery at the category A men's prison in Brasside when he was found with the prohibited USB stick on June 17, 2020.
Durham Crown Court heard that the 25-year-old was "shocked" at the contents of the stick and said he only used it to save Xbox game data.