Boeing Strategic Missile Systems of Anaheim, Calif., said Nov. 3 it had delivered updated cryptography devices to Northrop Grumman and the U.S. Air Force to provide additional communications security between ICBM launch control centers and the facilities that launch the missiles.

The new devices are part of the ICBM Cryptography Upgrade program for ICBM missile wings located at U.S. Air Force bases in Montana, North Dakota and Wyoming, Boeing said in a press release.

The work was preformed under the Northrop Grumman-led ICBM Prime Integration Contract, a program aimed at sustaining and modernizing the United States’ Minuteman 3 weapons system.