> Note what happened. A high-value credential—a passport—was used in an ancillary low-value authentication system: ID verification for cannabis dispensaries. And it’s the low-value system that got hacked, putting the high-value credential at risk. Why do these systems hold onto user's data post verification?
Why wouldn't they? There are probbaly significant downsides if they fail an audit requirement, and they're probably mandated to retain records for some period, with no consequences to extended retention. Set up a system so that it costs you nothing to do a bad thing but possibly wrecks you legally and financially to do the good thing, and people will inevitably do the bad thing. They shouldn't be collecting this info…
Right, and keeping old passports used for verification should cause an audit to fail.