I still don't understand why lobbying - a socially accepted form of corruption - still exists, without being questioned. Even more so as, today, everybody knows that 1% control most of the wealth == lobbying == legislation == our lives.
The intent of lobbying is to inform elected officials about issues that they do not necessarily know anything about. The bribery aspect really has more to do with campaign contributions than lobbying, though lobbying can indirectly use those contributions, as well as a lot of societal norms to get its own way (you spend a lot of time discussing issues with someone, even when that someone is biased, and it's a bit rude to vote against them).
Without lobbyists, we have a bunch of uninformed, extremely partisan, mostly white, mostly old, mostly men deciding law, and that's probably even worse.
I don't know the fix; certainly, limiting the amount of lobbying corporations can do is likely part of it, but I would not want to also limit the ability of the ACLU and EFF from being able to talk to Congress, either.
Verification of votes would be very possible. If it did get hacked then fix the security hole, wipe the system, and vote again.
It would never happen because of self-interest in congress and they'd argue "but normal citizens are too dumb to decide for themselves".
People need to pay more attention to what the government is doing, pretty much all the time, and at every level of government. It would also be nice if people were a little more willing to consider that permission from 51% is still some pretty shitty permission.