Was correct information given to the questionees before asking the question?

Hitoshi Kokumai
2 min readApr 22, 2021


“Consumers recognize biometrics security tops passwords, Experian says” https://www.biometricupdate.com/202104/consumers-recognize-biometrics-security-tops-passwords-experian-says

We have to be curious to find out what the outcome would be if the consumers had been informed

that they would see biometrics bring down the overall security to the level lower than a password/PIN-only authentication


that they would have to face a huge inconvenience over their lifespan when their biometrics data, that cannot be cancelled, have been leaked.

Could their opinions remain the same?

< KeReference >

Inconvenience behind Convenience of Biometrics

“Quantitative Examination of MultipleAuthenticator Deployment”

Negative Security Effect of Biometrics Deployed in Cyberspace

External Body Features Viewed as ‘What We Are’

Additional References

For Achieving Solid Digital Identity on Information Security Buzz (Mar/2021)

What We Know for Certain about Authentication Factors

Digital Identity for Global Citizens

Image-to-Code Conversion by Expanded Password System

Summary and Brief History — Expanded Password System

Proposition on How to Build Sustainable Digital Identity Platform

Account Recovery with Expanded Password System

History, Current Status and Future Scenarios of Expanded Password System

Negative Security Effect of Biometrics Deployed in Cyberspace

Removal of Passwords and Its Security Effect

Availability-First Approach

Update: Questions and Answers — Expanded Password System and Related Issues

< Videos on YouTube>

Slide: Outline of Expanded Password System (3minutes 2seconds)

Digital Identity for Global Citizens (10minutes — narrated)

Demo: Simplified Operation on Smartphone for consumers (1m41s)

Demo: High-Security Operation on PC for managers (4m28s)

Demo: Simple capture and registration of pictures by users (1m26s)

Slide: Biometrics in Cyber Space — “below-one” factor authentication



Hitoshi Kokumai

Advocate of ‘Identity Assurance by Our Own Volition and Memory’, Inventor of Expanded Password System and Founder of Mnemonic Identity Solutions Limited in UK.