“We know that the Covenant—our translation of their name for themselves—are a conglomerate of a number of different alien species. We believe that they exist in some kind of caste structure, though to date the exact nature of that structure remains unknown. Our best guess is that the Covenant conquer and ‘absorb’ a species, and adapt its strengths into their own.
	“The Covenant’s science is imitative rather then innovative, a by-product of this societal ‘absorption,’” Dr. Halsey continued. “This is not to say that they are lacking intelligence, however. During our first encounter, they gathered computer and network components from our destroyed ships … and they learned at an astonishing pace.
	“By the time Admiral Cole’s fleet arrived at Harvest, the Covenant initiated a communications link and attempted a primitive software infiltration of our ship AIs. In a matter of weeks, they had learned the rudiments of our computer systems and our language. Our own attempts to decipher Covenant computer systems have only been partially successful, despite our best efforts and decades of time.
	“Since then they have made increasingly successful forays into our computer networks. That is why the Cole Protocol is so important and carries the punishment of treason for failure to comply. The Covenant may one day not need to capture a ship to steal the information within its navigational databanks.”