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Communications of the ACM

ACM Opinion

My Thoughts Are My Password, Because My Brain Reactions Are ­nique


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Entering a brain password

A test subject entering a brain password.

Credit: Wenyao Xu, et al.

Your brain is an inexhaustible source of secure passwords—but you might not have to remember anything. Passwords and PINs with letters and numbers are relatively easily hacked, hard to remember and generally insecure.

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