Jacob Appelbaum is an independent computer security researcher and hacker. He was employed by the University of Washington, and is a core member of the Tor project. Appelbaum is known for representing Wikileaks at the 2010 Hope conference. He has subsequently been repeatedly targeted by US law enforcement agencies, who obtained a court order for his Twitter account data, detained him 12 times at the US border after trips abroad, and seized a laptop and several mobile phones.
Appelbaum, under the handle "ioerror", has been an active member of the Cult of the Dead Cow hacker collective since 2008, and is the co-founder of the San Francisco hackerspace Noisebridge with Mitch Altman. He has worked for Greenpeace and has volunteered for the Ruckus Society and the Rainforest Action Network. He is also a photographer and ambassador for the art group monochrom.
In the video below Jacob Appelbaum states he is an atheist: "But the question is, historically, part of the group that you're a part of - whether it's racial, gender, religious, whatever - how has your group fared historically? The groups that you're a part of? Like, for me, as an atheist, bisexual, Jew, I'm gonna go on, uh - oh and Emma Goldman is one of my great heroes and I really think that anarchism is a fantastic principle by which to fashion a utopian society even if we can't get there. Like historically, that does not go well."