https://www.bleepingcomputer.com/news/security/hacker-hijacks-orange-spain-ripe-account-to-cause-bgp-havoc/

Orange Spain suffered an internet outage today after a hacker breached the company's RIPE account to misconfigure BGP routing and an RPKI configuration.

The routing of traffic on the internet is handled by Border Gateway Protocol (BGP), which allows organizations to associate their IP addresses with autonomous system (AS) numbers and advertise them to other routers they are connected to, known as their peers.