I applied online. The process took 1 day. I interviewed at Orbis Protect (London, England) in Jun 2010
Interview
Interview took about an hour and a half; we discussed my CV, and then the interviewer asked me a series of lateral thinking puzzles. Very open to people of different backgrounds, but you definitely need good maths and logic. The Fermi Problem came up, as some other classic logic puzzles
Interview questions [2]
Question 1
Would you be surprised if I told you that five piano tuners dies in the city of Chicago last year?