The recent Optus crash left 10 million Australian left struggling to stay in touch, we have a look at what happened. Was it a cyber attack or an errant piece of code? What vulnerabilities did it reveal in Australia's electronic infrastructure? How vulnerable are we to this kind of disaster? And is there anything that could be even more devastating? Have your bug out bag ready by the door with this week's ep! See omnystudio.com/listener for privacy information.