This document discusses internet routing security and provides an overview of routing protocols like BGP. It covers topics like routing hijacking incidents, the need for trust between network operators, and mechanisms to secure routing like the Resource Public Key Infrastructure (RPKI) and BGPsec. RPKI allows network operators to publish and distribute routing policies and IP address allocations, validating the origin and distribution of Internet number resources. BGPsec aims to provide origin authentication and integrity protection for BGP routing messages to prevent route hijacking. The document also discusses challenges around deploying these security mechanisms and ensuring global coverage.