Internet reports that former voting machine auditor Michal Pospieszalski warned that the U.S. electoral system still has serious security flaws that have been discovered but not fixed since 2006. As CEO of blockchain security company MatterFi, he pointed out that current voting machines lack end-to-end cryptographic certificates that prevent votes from being counted twice or verify their legitimacy. Pospieszalski suggested adopting a solution based on David Chaum's encryption technology that adds an anonymous serial number to each ballot to ensure uniqueness without introducing complex blockchain technology. He said such improvements could be achieved through software upgrades, but legislation would be needed to push voting machine manufacturers to take action. At the same time, New York State has proposed a bill to study the application of blockchain technology to election security.