Personal identification number

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Personal Identification Number

Commonly called a PIN. A password that a person uses to access an ATM with one's debit card, though they are increasingly being used for all debit card transactions. A PIN protects the person who owns the card from identity theft as well as the risk that a thief can steal the card and then use it without limit. Assuming the PIN is randomly generated when the card is issued and the potential thief has no other information, the thief has approximately a 0.06% chance of guessing the PIN when using the card. It was invented by James Goodfellow, who was also instrumental in developing the ATM itself.

Personal identification number (PIN).

A personal identification number is a combination of numbers, letters, or both that you use to access your checking and savings accounts, credit card accounts, or investment accounts electronically.

You also need a PIN to authorize certain debit card purchases as well as for identification in other situations, such as accessing cell phone messages.

A PIN is one way to help protect your accounts against unauthorized use since presumably no other person would know the four- to six-letter code you have chosen. PINs are not foolproof, however, if you don't take steps to ensure that your code remains private.

References in classic literature ?
With this she went off, and as soon as she had gone the lad took the pin out of his master's coat.
But I'm afraid I didn't describe him so very accurately after all, for his pince-nez was broken under him, and the long gold pin wasn't stuck through his purple scarf but through his heart.
An hour or two afterwards the landlord got up, and took his handkerchief to wipe his face, but the pin ran into him and pricked him: then he walked into the kitchen to light his pipe at the fire, but when he stirred it up the eggshells flew into his eyes, and almost blinded him.
When they arrived at Mr Korbes's house, he was not at home; so the mice drew the carriage into the coach-house, Chanticleer and Partlet flew upon a beam, the cat sat down in the fireplace, the duck got into the washing cistern, the pin stuck himself into the bed pillow, the millstone laid himself over the house door, and the egg rolled himself up in the towel.
Then he was very angry, and went without his supper to bed; but when he laid his head on the pillow, the pin ran into his cheek: at this he became quite furious, and, jumping up, would have run out of the house; but when he came to the door, the millstone fell down on his head, and killed him on the spot.
And she caught at the brooch; but it was too late: the pin had slipped, and the Queen had pricked her finger.
Now you shall see me pin it on again, all by myself
She found the pin with an adorable little cry, and I turned my attention more fully to my steering.
Rose Rolling Pin, PS10, Cath Kidston Form and function - this is the prettiest pin we've seen.
SO, WHEN YOU FOLD THESE TROOP SEATS, MAKE SURE YOU PULL OUT THE PUSH PIN FIRST, THEN FOLD THE SEAT UP AND RE-INSERT THE PIN.
The four pins are made of thin metal to support each fiber without blocking up the sight picture.
For this "Dart Tip" system, Hasco placed the Z1081 magnetic needle drive behind precision-guided, round ejector plates, each operating four valve pins.