[julie1]

I would be strongly relieved learning he failed his PhD in security: his article is a pure FUD.

Why secrets are needed? Because secrets are unpredictable and thus are the signature of a common knowledge that cannot be guessed when checked against randomness.

Every other solutions are scams especially biometry:

- measure can fail; - if something can be measured it can be captured/duplicated.

Security market is based on fear.

I so wished security efficiency was audited based on the number of security holes they cause sometimes.