Simple past tense and past participle of brief.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "briefed" in a sentence
"Each company captain briefed his staff NCOs on their specific routes and objectives in the city, and on the radio "freeks" and call signs to be used."
"Last fall, Hern and Deakin briefed their Military Girls conference ideas to Air Force Brig."
"They're taking their cues, in part, from what President Bush said this morning after being briefed, which is that basically the government's cautiously optimistic that the damage is not as bad from this hurricane as it was after Katrina."