90% of the top 10 websites, Facebook, Google, Yahoo, Youtube, etc register their Domain Names with a domain registrar called MarkMonitor. If Markmonitor were hacked, the hacker could reset the name servers and effectively make them inaccessible or direct traffic to a phishing website.
Source & Other Info: http://www.webdigi.co.uk/blog/2013/a-single-kill-switch-for-90-of-the-top-ten-websites/
- Is this a potential risk?
- What security restrictions could Mark Monitor have in place to prevent changes?
- Is it too costly for these companies to be a registrar themselves (like IBM)