[2] Where e-pollbooks are deployed, they have consolidated broad data (from entire city, county and/or federated state) into usable information at a polling place and have replaced a paper-based system or complemented the paper processes.
This consolidation has replaced or supplemented a manual process, usually a telephone call, from a precinct back to the local or regional board of elections.
In 2023 a contractor, WSD Digital, developing a voter registration and e-pollbook system for New Hampshire put in code to link to websites in Russia and used open source software managed by a Russian.
[5] In 2020 Williamson County TX found two problems: that its use of e-pollbooks sometimes assigned the wrong ballot style to voters, so they voted on contests outside their area, and did not vote on contests in their own area; and that some ballots did not display the voters' precincts.
[6] In 2006, at least two vendors had problems with e-pollbooks, including Diebold in Maryland in September 2006[7] and Sequoia Voting Systems in Denver, Colorado in November 2006.