A Swiss E-Voting Mystery: USB Glitch or Sabotage? Imagine that you're a member of an electoral board, and the cryptographic materials required to decrypt votes, coming from an e-voting system, are stored on a USB key that happens to fail. But wait...because another USB key fails, and then another one...That's precisely what happened in the Swiss canton of Basel, now under a criminal investigation for possible electoral fraud. A glitch, or something else? Let's try to untangle an interesting incident involving cryptography, politics, e-voting, and USB keys. Index Swiss Post E-Voting System The Basel Incident USB keys: a prominent attack vector. What did these 3 USB keys contain? A plausible scenario Once-in-a-lifetime Glitch or Sabotage? Conclusions Summary The reason I'm writing about this incident is because in recent years I've spent a significant amount of time studying and trying to break the Swiss Post e-voting system, which was u...