https://citp.princeton.edu/our-work/voting/
https://www.youtube.com/watch?v=ZVWIOwSkMew
What's really sad is this is literally the same guy who proved the same thing in 2006. (I'm going on a limb and assuming this is the same J. Alex Halderman who wrote this paper at Princeton)
This has been an ongoing problem for almost twenty fucking years.
I went looking for this info because it spurred a memory. The "bic pen" was a part of this hack nearly 20 years ago, and the reference to it made me remember the original.
Fucking travesty.