BNZ specifies an interesting use for your Eftpos card PIN that’s not permitted in their newest card terms and conditions – using it for the lock code on your phone.
1.5 PIN selection
… Your PIN should not be used for any other purpose including your lock/unlock code for your mobile phone.
In the new card letter they also make an interesting comparison of PINs to electronic signatures. But I think their next sentence shows why this is a potentially confusing example to give:
“When selecting a PIN please remember that this is your electronic signature. You must not keep a written record of your PIN, give your PIN to any other person or select a PIN that can be readily associated with you such as birth dates, addresses, parts of telephone numbers, car registrations, sequential numbers (eg 1234, 9999) or any other easily found personal information.”
Signatures are often written down, given away and are made up of personal information. Perhaps there is a better comparison available?
Image credit: Andres Rueda