It’s not necessary, and often not desirable, to operate a device with the sensitivity set at the CER level. For example, an organization may use a facial recognition system to allow or deny access to a secure area because they want to ensure that unauthorized individuals are never granted access. In this case, the organization would set the sensitivity very high so there is very little chance of a Type 2 error (false acceptance). This may result in more false rejections, but a false rejection is more acceptable than a false acceptance in this scenario.
- Chapter 13 Managing Identity and Authentication
- from CISSP (ISC)2 Certified Information Systems Security Professional Official Study Guide, 7th Edition
- Publisher: Sybex
- Released: September 2015
As Sensitivity increases FRR increases and FAR decreases
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