Pikewerks' products include Electronic Armor, a software tool that protects executable files. No word has come out on how much money changed hands, but Raytheon says it shouldn't impact total sales or per-share earnings.

Raytheon is treating cybersecurity as a growth area, as the defense industry braces for a drop in spending. Pikewerks is the ninth cybersecurity firm that Raytheon has bought since 2007.

This story is part of Federal News Radio's daily Cybersecurity Update. For more cybersecurity news, click here.