An attack on the main domain name system registrar in Puerto Rico led to the local Web sites of Google, Microsoft, Yahoo, Coca-Cola, and other big companies being redirected for a few hours on Sunday. Those sites and others including PayPal, Nike, Dell, and Nokia, were redirected to sites that were black except for messages in hacker lingo saying that the sites had been hacked. However, the sites themselves were not hacked, Amichai Shulman, chief technology officer at Imperva, said.
Source: https://threatpost.com/puerto-rico-sites-redirected-dns-attack-042809/72653/