Frankly I can't conclude, basically normal knowledge in technology field and security field. Definitely take the time to research and prepare for the case interview. They give you the case 48 hrs in ahead so you have time to get ready. The case is usually base on the position you're interviewing for. And think from the clients stand point. The behavioral interview with partner was very fun for me. I had mine in Philadelphia, they ask you some questions like "describe a time when you're in a blahblahblah situation". Just make sure you answer the right thing.... And be yourself, because you can't fake passion.
