In this, our 70th episode of The Security Ledger podcast, we speak withXu Zou of the Internet of Things security startup Zingbox about the challenges of securing medical devices and clinical networks from cyber attack. Also: we take a look at the turmoil that has erupted around the OWASP Top 10, a list of common application security foibles. And finally: open source management vendor Black Duck Software announced that it was being acquired for more than half a billion dollars. We sit down with Black Duck CEO Lou Shipley to talk about the software supply chain and to hear what's next for his company.