Portable Firefox with Tor, or something like that.

http://www.torproject.org/torbrowser/

http://en.wikipedia.org/wiki/Portable_Tor

Good point, I buy that explanation.

IMHO, anybody who's carrying around TOR and using it to bypass an employer's filters so he can get to porn has a real problem.

Several years back, me and a coworker looked at the company's DNS servers, curious what names were cached. We were pretty horrified. I guess this kind of thing is pretty widespread, more than "outsiders" would expect -- particularly from a cubicle farm where there's no privacy.

At a job in college, a desk jockey ordered porn and used his work address on the purchase. He got caught when the sys admin came across the email w/his receipt in the spam queue. Though he wasn't fired (he did get chewed out) I couldn't look him in the eye after I saw the list of movies he purchased (they were largely she-male dvds).

Maybe they meant a wifi stick; I know people who use these to connect to other wifi hotspots from work.