Attributing Attacks on the Internet of Things

A discussion of the implication of security on the Internet of Things.  If everything is connected, the path to us or our households brings insecurity yet closer.     So can we attribute the source of recent attacks?  " ... Symantec published a response indicating that IoT devices were not responsible for the spam attack in question, and the machines behind the spam attack were all really just infected Windows boxes. So why is determining the identify of the devices used in this spam attack so difficult? ... "