If we look at HN aka Hacker News, most of the latest news is on BGP

1. Google Services Inaccessible Due to BGP Leak
2. Google goes down after major BGP mishap routes traffic through China
3. Google's IP prefixes routed via China, Russia and Nigeria due to a BGP hijack
4. Potential BGP hijack underway
5. The Hidden Story of China Telecom’s BGP Hijacking

There are papers after paper talking about it.

ref: https://scholarcommons.usf.edu/cgi/viewcontent.cgi?article=1050&context=mca

What is BGP ?

Border Gateway Protcol (BGP) forms the core of the internet traffic as every computer (router, node, switches -- anything and everything that uses TCP) relies on BGP to find the routes. On the 4 layer TCP/IP model, this is in the Layer4. The routes are often manually configured.

From a real world perspective, a BGP route can be a localite who knows the routes of the area. A visitor the area will trust the localite and then fall into trouble.

What is BGP Poisoning ?

poisoning or Hijacking happens when some one publishes a wrong route. Since many time routes are configured manually, this could be unintentional too.

(from : https://bgpmon.net/what-caused-todays-internet-hiccup/ )