Christina Cho, the Kim Kardashian Flour Bomber -- Militant PETA Member

Kim Kardashian's flour attacker is a mega-influential PETA activist -- despite the animal organization denying ANY connection to the anti-fur activist's recent flour bombing stunt.

The woman's name is Christina Cho -- and she has a history of staging dramatic anti-fur protests in PETA's name. Back in 2010, she grabbed the mic from Donna Karan at a Women's Conference event in NYC, condemning the use of fur in fashion (below).

PETA reported on the protest -- referring to Christina as a "PETA member" and "superstar activist." Christina even won an award from PETA in 2010 for her work for the organization.

Christina's younger sister Michelle is a top PETA official in L.A., who credits Christina with leading her to PETA and a life of activism.

As we previously reported, PETA is adamant it wasn't behind Christina's outburst last week -- when she dumped flour on Kim Kardashian at a red carpet event -- telling TMZ, "It was not [us]. We were given the video by an anti-fur activist on the scene."