In light of the on-going hacking of high-profile Twitter accounts, the firm is (supposedly) set to roll-out a two-step authentication process (arguably, long overdue). Independent of this proposed solution, it begs a bigger question: if / when a more universally secure solution (is that even possible) will be created that’ll essentially replace passwords (e.g., retinal / fingerprint scan, etc.)
(Source) Wired: http://goo.gl/5xL8Q