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Which of the following is the least secure method of authentication?

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in Operating System by (102k points)
Which of the following is the least secure method of authentication?

(a) Key card

(b) fingerprint

(c) retina pattern

(d) Password

This question was posed to me during an online exam.

My enquiry is from Security topic in division Security of Operating System

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Best answer
Correct option is (d) Password

Explanation: Passwords can be compromised more easily than to replicate a physical thing like key card, fingerprint or retina.

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