Lack of clean water can cause large amounts of chaos very quickly[1]. Water infrastructure should be something that Governments want to protect.<p>Given that, and given weird laws about "providing help to terrorists"[2] I'm amazed that someone putting a 3 character password on something so important, and then letting it face the Internet, is not going to see jail time.<p>[1] See, for example, flooding in Gloucestershire, England, a few years ago. That was troublesome, but only got really bad when a local water treatment plant was flooded.<p>[2] At least, in the UK.