Fwiw, this isn't a hack, this is a DDoS (denial of service). It seems almost certain that your information was either given out by dynu, or your WHOIS record is

Fwiw, this isn't a hack, this is a DDoS (denial of service). It seems almost certain that your information was either given out by dynu, or your WHOIS record isn't protected. Check your domains out with your favorite WHOIS tool first. Otherwise... time for an awkward conversation with dynu.