Way back in about 1995 ... I worked for a company called Stac Electronics. My boss tasked me with designing an ecommerce-capable web infrastructure – a fairly advanced notion for the day. This was primarily an education problem for me, as when I started I knew almost nothing about the subject. One of the requirements my boss gave me was for redundant ISP connections, and I figured out pretty quickly that one could only do this, practically speaking, by connecting fairly close to the “backbone” and running a routing protocol called BGP. When I dug into BGP, I quickly ran into lots of discussions about security problems with BGP.