The Defense Information Systems Agency (DISA) is a combat support agency of the Department of Defense (DoD). DISA provides, operates, and assures command and control and information-sharing capabilities and a globally accessible enterprise information infrastructure in direct support to joint warfighters, national level leaders, and other mission and coalition partners across the full spectrum of military operations.
DISA performed a series of testing and validation on WORMdisks and CYBERdisks and concluded in their assessment report that “The GreenTec WORMdisk product allows for permanent unchangeable storage of data onto a hard disk medium. The CYBERdisk product allows for protection of a boot hard disk where the Master Boot Record (MBR) is unalterable. The two products perform as advertised. Of note, IE55 was not able to change any data promised to be unalterable.” and that “The products certainly are strong enough to support many Write Once Read Many (WORM) applications.”