An ill-conceived California bill endorses a blockchain-based system that would turn COVID-19 test results into permanent records that could be used to grant access to public places.
EFF and ACLU oppose California A.B. 2004. The newest version of this bill would create a pilot program for using “verifiable health credentials†to report COVID-19 and other medical test results. The bill defines such a credential as “a portable electronic patient record,†for which authenticity “can be independently verified cryptographically.†The bill’s fact sheet explains that these credentials “use blockchain technology†to create “a provable health record†for purpose of “travel, returning to employment, immunization status, and so on.†Three rounds of official bill analysis provide the same explanation.
This bill is a blockchain solution in search of a problem, and COVID-19 is a problem that will not be so easily solved.
That’s a huge privacy concern. No one should have to unlock their phone and expose their health information in order to gain entry to their office, school, or neighborhood market.
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https://www.thedailyfodder.com/2020/08/no-to-blockchain-credentials-of-covid.html