John Slye, an advisory research analyst at Deltek and author of the report, quoted news reports as saying the Pentagon is seeking $4.6 billion for cybersecurity in fiscal 2014, up from 18 percent from 2013.
The yearly amount is 100 percent less than OMB reports, added Slye, differences he said may be attributed to contrasting definitions among agencies on IT head count, as well as variances in the ratios of government and contractor personnel.
The larger OMB figures could have included cyber commands specific to the DoD, he added.
According to the report, the DoD is looking to spend a total of $23 billion on IT security for the next five years.