July 2nd, 2009

You can use a Coke slogan as your password, but not a Pepsi one

Raymond Chen
Raymond Chen

When Larry Osterman mentioned News Flash: Spaces are legal characters in both filenames and passwords, I was reminded of my own little experiment with passwords and spaces. Over a decade ago, I tried using spaces in my password, and they were accepted, but I ran into a different problem: Brand name bias.

The password system accepted “Coke adds life” as my password, but it rejected “Pepsi the choice of a new generation”. Why did the password system accept a Coke slogan but not a Pepsi one? Hint.

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Raymond Chen

Raymond has been involved in the evolution of Windows for more than 30 years. In 2003, he began a Web site known as The Old New Thing which has grown in popularity far beyond his wildest imagination, a development which still gives him the heebie-jeebies. The Web site spawned a book, coincidentally also titled The Old New Thing (Addison Wesley 2007). He occasionally appears on the Windows Dev Docs Twitter account to tell stories which convey no useful information.

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