That shows one of the issues of the kind of centralization IoT as currently done pushes for. Breach in one company? Plenty more people impacted...

Best part of the article is probably the stated motives:
"Kottmann said their reasons for hacking are “lots of curiosity, fighting for freedom of information and against intellectual property, a huge dose of anti-capitalism, a hint of anarchism -- and it’s also just too much fun not to do it.”"