The Border Gateway Protocol (BGP), the primary backbone routing protocol, was designed before we knew much about security; we have been changing and fixing it as our knowledge has increased.
It ensures that emails reach the right recipients, e-commerce sites remain operational, and e-government services continue to serve citizens.
The security of the global routing system is crucial to the Internet’s continued growth and to safeguard the opportunities it provides for all users.
Improvements include the establishment of specific data to help operators identify what routing data is valid and what is not, as well as specific operational practices to address known attacks.
To date, the biggest problem with those capabilities is that many operators remain either unaware or unconvinced that their participation is needed if matters are to improve.