Scientists at Max-Planck-Institute for Physics of Complex Systems recently published a paper describing a two-part method to improve password security.
One part is all you: Memorise your password. The second is all computer: A stored, “CAPTCHA-like image of a chaotic lattice system” is generated along with it.
Of all the days to see this over at Slashdot… [lanl.arXiv.org via Slashdot]