I applied through an employee referral. The process took 2 months. I interviewed at Apple in Jan 2011
Interview
The interview was the longest I've ever had. It was seven hours with about 15 people. The questions ranged from general personality to in depth discussions of solving particular problems.
Interviews with progressively more people added in, however they ghosted me after the panel interview and did not give me an update either way when I checked in with HR a month after the last interview
Interview questions [1]
Question 1
Asked for descriptions of how I would apply certain security policies
A full day interview consisting of some coding exercises, group exercises, presentation, and technical questions. The technical questions were easy, security related. The process was quite relaxed and not very stressful.