Without passwords as authentication we move on to more and more private information. How many people would honestly be willing to scan their eyes, hands or DNA to log on to Facebook.

If people are convinced to give up more of their private information out it will only be a matter of time before someone finds away around the new security in place. Databases are hacked everyday and information is lost.

Access is an issue but limiting what people can do with that access may be more important. If you just log into your bank account to check the balance and look for lost receipts then you do not need bill pay for a hacker to still your money.