Thaumaturgical Countermagic

Thaumaturgical Countermagic is a Discipline-like power which can cancel the effects of blood sorcery. As its name suggests, it specifically targets Thaumaturgy, though it can be used with reduced effectiveness against other forms of blood magic. The secrets of Thaumaturgical Countermagic are even more jealously guarded by the Tremere than the paths and rituals of Thaumaturgy itself, for it is a skill which any vampire may learn, even if they are incapable of mastering blood magic.

Theory
Very little information is given about Thaumaturgical Countermagic beyond its mechanical effects, but the fact that it does not rely on knowledge of Thaumaturgy, and has reduced effectiveness against other magics, may suggest a link to the Paradox that plagues mortal mages. While vampires do not subscribe to the concensus reality of Mage: The Ascension, it's possible Thaumaturgical Countermagic is a mystical refutation of the unnatural uses to which Thaumaturgy (and to a lesser extent other blood magics) stretches the power of Vitae.