The security field uses three different types of identification:
Something You Know — a password, PIN, or piece of personal information (such as your mother’s name)
Something You Have — a card key, smart card, or token
Something You Are — a biometric
Of these, a biometric is the most secure and convenient authentication tool. It can’t be borrowed, stolen, or forgotten, and forging one is practically impossible
- Speed – operation in seconds
- Decentralization…relatively inexpensive and requires no trained or skilled operating personnel.
- Ultravalidity – not susceptible to forgery or theft
- Convenience – no need to carry identity cards or similar items
- Uniqueness – the same trait will not appear in two people
