In the last couple of years several startup companies have begun to promote Internet voting systems, this time with a new twist – using a blockchain as the container for voted ballots transmitted from voters’ private devices. Blockchains are a relatively new system category somewhat akin to a distributed database. Proponents promote them as a revolutionary innovation providing strong security guarantees that can render online elections safe from cyberattack.
Unfortunately, such claims are false. Although the subject of considerable hype, blockchains do not offer any real security from cyberattacks. Like other online elections architectures, a blockchain election is vulnerable to a long list of threats that would leave it exposed to hacking and manipulation by anyone on the Internet, and the attack might never be detected or corrected.