A smart cookie could vote in such a manner as that when the information is entered into the system, it crashes it? Maybe that's what they mean by manipulation...
Or, is it available online without any authentication other than knowing where it is? So if you know where it is, you could enter votes and then manipulate the election with those fake votes...
> A smart cookie could vote in such a manner as that when the information is entered into the system, it crashes it?
"Informal" votes -- ballots where the voter does not correctly fill out the ballot paper -- are rejected from the tally by the counters under supervision from scrutineers.
If you use hexadecimal, it will be rejected. If you use a very large number, it will be rejected. If you use weird unicode characters, it will be rejected. If it's anything other than a) a single [1] "above the line" or a fully filled-out ballot "below the line" comprised of numbers from 1-n where n is the number of candidates-1, it will be rejected.
If it's crashing on properly filled-out votes, there's a bigger problem.
Or, is it available online without any authentication other than knowing where it is? So if you know where it is, you could enter votes and then manipulate the election with those fake votes...