I like to quote the Internet Census of 2012 [1] whenever that question comes up: "A lot of devices and services we have seen during our research should never b

I like to quote the Internet Census of 2012 [1] whenever that question comes up: "A lot of devices and services we have seen during our research should never be connected to the public Internet at all. As a rule of thumb, if you believe that "nobody would connect that to the Internet, really nobody", there are at least 1000 people who did. Whenever you think "that shouldn't be on the Internet but will probably be found a few times" it's there a few hundred thousand times. Like half a million printers, or a Million Webcams, or devices that have root as a root password." [1] http://census2012.sourceforge.net/paper.html http://census2012.sourceforge.net/paper.html