This is a very interesting topic. It has been refered to as many different things (Blanzian Luck, Blanzian Probability, The Blanz Syndrome, etc) and seems to be a spreading epidemic. As far as I can see, here is how it works:
You have a coin toss. 50% heads, 50% tails. That means you have a 1/16 chance of getting it right with Blanzian probability.
You have 50% on the CIA (50% on the first page, 50% on the second page, so a total of 25% of succeeding). Naturally, this means you have a 1/90 chance of succeeding the aforementioned hack.
Discuss.