The idea of uber- paranoia protection consists in comparing not only the text content of the password, but also the style of its input during initial registration.
For example: When checking can be considered:
total received text of all characters entered
approximate time intervals between keystrokes
As long as the villain picks up the correct input of the stolen password, the user will be warned, and therefore armed. ')
Pros :
Enhanced security
Extremely high probability that the authorized person is exactly who he claims to be.