One useful offshoot of this concept is called BGP anycasting and is frequently used by root DNS servers to allow multiple servers to use the same IP address, providing redundancy and a layer of protection against DoS attacks without publishing hundreds of server IP addresses. The difference in this situation is that each point advertising a prefix actually has access to the real data (DNS in this case) and responds correctly to end user requests. Public incidents April 1997: The "AS 7007 incident" December 24, 2004: TTNet in Turkey hijacks the Internet May 7, 2005: Google's May 2005 Outage January 22, 2006: Con Edison Communications hijacks big chunk of the Internet February 24, 2008: Pakistan's attempt to block YouTube access within their country takes down YouTube entirely. November 11, 2008: The Brazilian ISP CTBC - Companhia de Telecomunicações do Brasil Central leaked their internal table into the global BGP table. It lasted over 5 minutes. Although, it was detected by a RIPE route server and then it was not propagated, affecting practically only their own ISP customers and few others. April 8, 2010: Chinese ISP hijacks the Internet July 2013: The Hacking Team aided Raggruppamento Operativo Speciale (ROS - Special Operations Group of the Italian National Military police) in regaining access to Remote Access Tool (RAT) clients after they abruptly lost access to one of their control servers when the Santrex IPv4 prefix 46.166.163.0/24 became permanently unreachable. ROS and the Hacking Team worked with the Italian network operator Aruba S.p.A. (AS31034) to get the prefix announced in BGP in order to regain access to the control server. February, 2014: Canadian ISP used to redirect data from ISPs. - In 22 incidents between February and May a hacker redirected traffic for roughly 30 seconds each session. Bitcoin and other crypto-currency mining operations were targeted and currency was stolen. January 2017: Iranian pornography censorship. April 2017: Russian telecommunication company Rostelecom (AS12389) originated 37 prefixes for numerous other Autonomous Systems. The hijacked prefixes belonged to financial institutions (most notably MasterCard and Visa), other telecom companies, and a variety of other organizations. Even though the possible hijacking lasted no more than 7 minutes it is still not clear if the traffic got intercepted or modified. December 2017: Eighty high-traffic prefixes normally announced by Google, Apple, Facebook, Microsoft, Twitch, NTT Communications, Riot Games, and others, were announced by a Russian AS, DV-LINK-AS (AS39523). April 2018: