You're down - is it your servers, or someone else's? While at the Kansas City Developers Conference, Richard sits down with Mandi Walls from Pager Duty about her experiences dealing with incidents involving vendor services. It might be your cloud provider, or some other SaaS element of a pipeline, or even an open-source library dependency in an important internal application that can cause a problem. What are the next steps? Mandi talks about having a software and services bill of materials so that you know what dependencies you have, where to check their status, and how to get help when you need it. Our systems are more complicated than ever - you need a plan to deal with the incidents!