// Cloudflare Blog · 3 June 2026

Enforcing the First AS in BGP AS_PATHs

BGP is vulnerable to routing hijacks and path leaks that negatively impact traffic on the Internet. RPKI helps solve some of these problems, but for some forged paths, we need to rely on a simpler mechanism: First AS enforcement in BGP.

Cloudflare Blog

@cloudflare-blog · Bryton Herdes

blog.cloudflare.com

Cloudflare Blog@cloudflare-blog