ospalh quoted Day of Judgment by Jack Higgins (Simon Vaughn, #3)
June 26, 1963. JFK’s triumphal visit to divided Berlin is about to trigger catastrophe for …
Office for the Protection of the Constitution, popularly known as the BfV
— Day of Judgment by Jack Higgins (Simon Vaughn, #3) (Page 49 - 50)
Nah. Popularly they are known as Verfassungsschutz (constitution protection). BfV is how they are officially known. Verfassungsschutz is one syllable more than be eff vau, but easier to say, so no real mystery there.