'''Nemzetbiztonsági Hivatal''' (NBH) (Office of National Security) is the name of a [[Hungary|Hungarian]] [[secret service]]. Its primary responsibilities are defensive: counterintelligence, counter-terrorism, and related proactive measures. The Hivatal also leads investigations against organized crime and deals with (mainly internal) threats against society (such as political extremism).
[[Image:Emblem of the Constitution Protection Office of Hungary.svg|thumb|right|The AH logo. The bird is a [[turul]] and the shield itself the [[Arpad stripes]] of ancient Hungary. Its slogan means: "The homeland before all!"]]
It was reorganized after the fall of the [[socialist]] era in 1989, and it should now follow the modern law-based kind of information gathering and [[government]] support. Its previous incarnation has been part of the Ministry of Interior (Department III).
The '''Constitution Protection Office'''<ref name="news">{{cite web|url= http://www.tol.org/client/article/25103-hungarian-mep-spying-for-russia-may-lose-immunity.html|title=Hungarian MEP 'Spying' for Russia May Lose Immunity|publisher=Transitions Online|date=15 October 2015|access-date=19 October 2015}}</ref> ({{Lang-hu|Alkotmányvédelmi Hivatal}}, <abbr>"''AH''"</abbr>) is a [[Hungary|Hungarian]] [[internal security]] [[intelligence agency]], formerly known as {{Lang|hu|Nemzetbiztonsági Hivatal}} (En. Office of National Security). Its primary responsibilities are: [[counterintelligence]], [[Corruption|anticorruption]], [[economic security]] and related proactive measures. The ''AH'' also leads investigations against [[organized crime]] and deals with (mainly internal) threats against society (such as [[subversion]]).
