The Mighty Houdini and Cracking PIN Numbers

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And, so, Harry Houdini takes to the stage,

“I need a volunteer from the audience”,

Bob puts his hand up, and is chosen, and joins Houdini on the stage, “My name is Bob.” Houdini then says,

“From my brain waves, I have determined the PIN numbers for the bank cards for everyone in the audience, and I will demonstrate this by revealing Bob’s PIN number on the screen behind me!”

The audience gasp!

“Now, Bob. Write down your PIN number so that we can check, and lay it face down”.

Bob writes down his PIN number and places it face down on a table. Houdini has a small peak to see that he has written it down correctly.

“And, now, as I speak to you. I pray that I can quickly tell you your PIN number, and pray that it can be quick to discover it”

There’s a drum role, and then Houdini asks for the curtain to be taken down. It reveals the code of:

718510

“Please, Bob, reveal your PIN number”.

Bob’s face goes white, and reveals the PIN code of “719510”.

The audience gasps, and start making plans to change their PIN number for their bank accounts.

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Prof Bill Buchanan OBE FRSE
ASecuritySite: When Bob Met Alice

Professor of Cryptography. Serial innovator. Believer in fairness, justice & freedom. Based in Edinburgh. Old World Breaker. New World Creator. Building trust.