Are Biometric Templates Secret?

The concern is often expressed that if a template is compromised the biometric system itself can be compromised. This can happen, but can also be prevented in a well-designed system. If a criminal steals or guesses your password, it is very easy to have it changed. There is a fear, however, that if a criminal gets hold of a biometric template, the damage is irreparable - there is no way to change that part of your body. Although templates are often encrypted when in transit and storage in order to protect against such an occurrence, what happens if a template is compromised?

 

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