Route leaks containing more specific announcements of Internet Exchange Peering-LANs pose a risk to the reliability of Internet infrastructure. RPKI validation and filtering can mitigate some of the dangers - if the IXP operator created proper ROAs. In this lightning talk we will take a look at what can go wrong, how RPKI ROAs can save us and what the current state of the rollout is. None about this event: https://pretalx.com/denog14/talk/YMZT7G/