Part 1 of a 5-part series If I can shop and bank online, why can’t I vote online? David Jefferson explained in 2011 why internet voting is so difficult to make secure, I summarized again in 2021 why internet voting is still inherently insecure, and many other experts have explained it too. Still, several […]
A PDF File Is Not Paper, So PDF Ballots Cannot Be Verified
May 19, 2022 by
A new paper by Henry Herrington, a computer science undergraduate at Princeton University, demonstrates that a hacked PDF ballot can display one set of votes to the voter, but different votes after it’s emailed – or uploaded – to election officials doing the counting. For overseas voters or voters with disabilities, many states provide “Remote Accessible Vote […]
ES&S Uses Undergraduate Project to Lobby New York Legislature on Risky Voting Machines
May 12, 2022 by
The New York State Legislature is considering a bill that would ban all-in-one voting machines. That is, voting machines that can both print votes on a ballot and scan and count votes from a ballot – all in the same paper path. This is an important safeguard because such machines, if they are hacked by […]
Blockchains and voting
September 12, 2017 by
I’ve been asked about a number of ideas lately involving voting systems and blockchains. This blog piece talks about all the security properties that a voting system needs to have, where blockchains help, and where they don’t. Let’s start off a decade ago, when Daniel Sandler and I first wrote a paper saying blockchains would be […]
Security against Election Hacking – Part 2: Cyberoffense is not the best cyberdefense!
August 18, 2016 by
State and county election officials across the country employ thousands of computers in election administration, most of them are connected (from time to time) to the internet (or exchange data cartridges with machines that are connected). In my previous post I explained how we must audit elections independently of the computers, so we can trust the […]
