A major cyberattack on some of the internet's most well-known brands on Friday has its roots in New Hampshire — specifically the software company, Dyn. The infrastructure-as-a-service company based in Manchester, New Hampshire, supports sites such as Twitter, Spotify and Reddit — all of which have been affected by today's outages. Dyn, which offers managed DNS and email delivery services to other companies, said in a statement posted on its website that it suffered a denial-of-service attack…