Prison security guards wore armoured Guardsmen uniforms, similar to the original Guardsman's armor, used technology adapted from Iron Man's designs. As a part of the "Armor Wars" storyline, Iron Man originally disagreed with this unauthorised use of designs and this led to Iron Man to forcibly remove all technology, resulting in jailbreak though the escapees were quickly recaptured. Iron Man's opinion later partially changed and went on to contribute to a later Guardsmen design, limited to work only in the Vault itself and the close environs thereof.