This looks pretty good. Hackathon on Swiss voting system. Sizeable rewards if you can change the votes.
https://www.evoting-blog.ch/en/pages/2019/public-hacker-test-on-swiss-post-s-e-voting-system
Election hackathon
This looks pretty good. Hackathon on Swiss voting system. Sizeable rewards if you can change the votes.
https://www.evoting-blog.ch/en/pages/2019/public-hacker-test-on-swiss-post-s-e-voting-system