Mutually Agreed Norms for Routing Security (MANRS) aims to prevent BGP security issues that affect interdomain routing among autonomous systems. In 2018, there were 12,600 routing security incidents, according to ISOC. MANRS wants to convince ISPs around the world that it’s in their best interest to agree to BGP secure routing standards. The new MANRS Observatory measures the level of networks compliance to MANRS, a key indicator of the state of routing security and resiliency of the internet.”]
Source: https://www.csoonline.com/article/3433263/improving-bgp-routing-security-by-minding-your-manrs.html