The LIXIL Corporation My SATIS Genius Toilet application for Android has a hardcoded Bluetooth PIN, which allows physically proximate attackers to trigger physical resource consumption (water or heat) or user discomfort.
arstechnica.com/security/2013/08/holy-sht-smart-toilet-hack-attack/
packetstormsecurity.com/files/122655/LIXIL-Satis-Toilet-Hard-Coded-Bluetooth-PIN.html
seclists.org/fulldisclosure/2013/Aug/18
www.huffingtonpost.co.uk/2013/08/05/smart-toilet-could-attackmy-satis_n_3706116.html
www.independent.co.uk/life-style/gadgets-and-tech/features/now-even-toilets-arent-safe-from-hacking-8747232.html
www.trustwave.com/spiderlabs/advisories/TWSL2013-020.txt