possible that someone may discover and use a password that doesn't belong to them?

yes

while systemaccounting will use the most advanced but practical mechanisms to secure accounts and information, it was designed to expel a much larger hack affecting the entire financial system

when software contains a flaw, it is said to be a bug—which can enable a hack

the united states congress is similar to a software company in that it also produces intellectual property that users of the system must abide by, and it has released a bug in the form of a law that causes the whole of the financial system to be compromised by "banks" exercising undue privilege, and mixing their receivables with the objects designed to communicate the market has cleared

systemaccounting eliminates the greatest of hacks while tending to the smaller ones