The problem with a password is, is that you have to remember it.
How many people use the same password and when prompted to change it simply add a number to the end and then incrementally increase that at the next prompt.
The majority of people choose short words relating to their family, pets, favourite football team etc.
It has also been stated that in 75% of cases a password is written down and is within six feet of the computer. (stuck on a piece of paper under the keyboard is apparently a favourite.)
I think the way forward will be biometrics and then we can consign passwords to the bin along with floppy disks and 8 track stereo’s.
….and yes I am just as lazy with my passwords.