Premier Election Solutions
"In early 2006, a study for the state of California corroborated and expanded on the problem;[16] on page 2 the California report states that:
"Memory card attacks are a real threat: We determined that anyone who has access to a memory card of the AV-OS, and can tamper it (i.e. modify its contents), and can have the modified cards used in a voting machine during election, can indeed modify the election results from that machine in a number of ways. The fact that the results are incorrect cannot be detected except by a recount of the original paper ballots" and "Harri Hursti's attack does work: Mr. Hursti's attack on the AV-OS is definitely real. He was indeed able to change the election results by doing nothing more than modifying the contents of a memory card. He needed no passwords, no cryptographic keys, and no access to any other part of the voting system, including the GEMS election management server."
"In early 2006, a study for the state of California corroborated and expanded on the problem;[16] on page 2 the California report states that:
"Memory card attacks are a real threat: We determined that anyone who has access to a memory card of the AV-OS, and can tamper it (i.e. modify its contents), and can have the modified cards used in a voting machine during election, can indeed modify the election results from that machine in a number of ways. The fact that the results are incorrect cannot be detected except by a recount of the original paper ballots" and "Harri Hursti's attack does work: Mr. Hursti's attack on the AV-OS is definitely real. He was indeed able to change the election results by doing nothing more than modifying the contents of a memory card. He needed no passwords, no cryptographic keys, and no access to any other part of the voting system, including the GEMS election management server."