Systems used by courts and governments across the US riddled with vulnerabilities

One flaw he uncovered in the voter registration cancellation portal for the state of Georgia, for instance, allowed anyone visiting it to cancel the registration of any voter in that state when the visitor knew the name, birthdate, and county of residence of the voter. In another case, document management systems used in local courthouses across the country contained multiple flaws that allowed unauthorized people to access sensitive filings such as psychiatric evaluations that were under seal. And in one case, unauthorized people could assign themselves privileges that are supposed to be available only to clerks of the court and, from there, create, delete, or modify filings.