From JMG: Hackers released a huge Distributed Denial of Service attack in the Eastern US on the servers of DYN. Twitter, Spotify and Reddit are down or messed up.
http://www.joemygod.com/2016/10/21/hackers-take-down-major-sites/
http://www.joemygod.com/2016/10/21/hackers-take-down-major-sites/