The main concern that we have when putting a system together and making sure that it works is infiltration from the outside. If someone comes in from the outside and disrupts how things are going or skews votes or arguments a certain way, then it really does interfere with the process.
Concerning the voting itself, there's enough in place where a member will have passwords or will have a certain number of safety measures that will avoid someone breaking in and taking his or her vote away or his or her debate time away. To me, it is up to the member to protect that.