I've removed the replies here as the passwords are intended to be Patreon exclusive. While they can be found and decoded with enough know-how, they are not being handed out and we discourage sharing of that information. If there are individuals with the know-how we welcome their inputs on how we might make the passwords more secure.
We leave them in the public builds as to not limit access to them in the event that former patrons that had the passwords no longer subscribe to the patreon, but we'll be happy to change the model if we need to until the passwords are released to the public following our final build release.