You are trying to book theatre tickets online with a rarely used credit card. Prompted to give a password, you find you can no longer remember it. The result is a failed transaction and a minor rise in blood pressure.It gets worse. While shopping later on, you drop your car keys. An opportunist picks them up and wanders around the shopping mall’s car park pressing the unlock button until your vehicle lights flash on. The result is a stolen car and a major rise in blood pressure.
http://www.theguardian.com/technology/2014/jul/27/electronic-aura-answer-lost-passwords