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Hard-coded PIN vulnerability found in smart toilets

Posted August 7, 2013


Security experts are warning us all over the place. The digital life used to be a cubicle and workstation. Now it’s well, life. Everything is connected, and Internet is everywhere. That means criminal intruders along with pranksters can also broaden their reach from computer malware to home connections such as smart appliances and meters. Last week, there was one more proof that this was so: According to a warning by the information security firm Trustwave, a Satis-brand toilet by the Japan-based company Lixil can be controlled remotely by an Android app.



According to Daniel Crowley a managing consultant with information security firm Trustwave SpiderLabs, the vulnerability could allow a prankster to outsmart the toilets. The firm posted a warning on August 1 that a luxury brand of toilets that carry a smartphone app for controlling the smart features of the toilet can be commandeered by an outside invader. These toilets can communicate with the phone app through Bluetooth and therein lies the problem.


The Satis smart toilet, said the advisory, is controlled using the app My Satis. This Android application has a hard-coded Bluetooth PIN of “0000” and any person using the application can control any Satis toilet by downloading the app and entering the “0000” PIN. An attacker could cause the toilet to flush repeatedly. This would in turn raise water usage and for those who pay water bills could see an increase in costs on their utility bills.

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