9:04 a.m. September 11, 2001: Military Raises ‘Infocon’ Threat Level

The 1st Fighter Wing at Langley Air Force Base, Virginia, receives notification from NORAD of an increased Information Operations Condition (Infocon) threat level. The message from NORAD directs the 1st Fighter Wing command post to upgrade the Infocon computer security level from Normal to Alpha. According to the wing’s own records, this is “the first message correspondence” the wing receives “to indicate that September 11th would not be an average day.” [1st Fighter Wing History Office, 12/2001] Steps to be taken under Infocon Alpha reportedly include “changing passwords, updating keys used to create classified communication lines, minimizing cell phone use, backing up important documents on hard drive, updating virus protection on home computers, reporting suspicious activity, and reviewing checklists.” [Colorado Springs Gazette, 5/3/2001]
Five Security Levels – The Infocon system provides a structured, coordinated approach for defending against and reacting to attacks on Defense Department systems and networks. It comprises five levels of threat, each with its own protective procedures. These levels go from Normal, through Alpha, Bravo, and Charlie, up to Delta. [IAnewsletter, 12/2000 ; General Accounting Office, 3/29/2001 ] General Ralph Eberhart, the commander of both the US Space Command and NORAD, is responsible for evaluating the threat to military computers and issuing information conditions—“Infocons”—to the US military. [Colorado Springs Gazette, 5/3/2001] He is presumably therefore responsible for currently raising the Infocon level.
Threat Level Lowered on Previous Evening – The Infocon level was in fact lowered to Normal the previous evening, reportedly because of a reduced threat to US computer networks from hacker and virus attacks (see September 10, 2001). [1st Fighter Wing History Office, 12/2001] The 1st Fighter Wing is the “host unit” at Langley Air Force Base, which is about 130 miles from Washington, DC. It includes three fighter squadrons, which fly the F-15 Eagle fighter jet. [Virginian-Pilot, 9/20/2001; Langley Air Force Base, 11/2003; Air Force Print News, 11/9/2006]