The Recorder September 8, 2014: Stephen Coates, Twitter Inc.'s first in-house trademark lawyer: "... My hire also coincided with the opening of the new gTLD (generic top-level domain) space, which created several special problems for Twitter. Q: Can you explain what that is? A: ICANN (Internet Corporation for Assigned Names and Numbers), the governing body that runs the domain name and the world of the Internet, decided to open up applications for new gTLDs, with anything to the right of the "dot."... "dot" Microsoft, "dot" App... Twitter didn't file any new applications, so we don't have any new gTLDs, but for defensive reasons and strategic marketing reasons, we are buying a lot of domain names anyway. With those new gTLDs, there have been some challenges, the chief of which for Twitter was "name collision." Q: What is name collision? A: Name collision is a list of 2,000 to 3,000 names and numbers that ICANN has deemed as creating security risks on the Internet, with very technical issues. ICANN is multiplying the number of [top-level domains] out there... so when you have all these new TLDs, what is that going to mean for the Internet? Is it going to break? These are the questions that have been asked for several years and the problem with name collision is that it included a lot of brands, including "Twitter" and "tweet."..."
Top YouTube comment to the video above: "Stunning. This is saying, in a nutshell "Do you use default domain suffixes and short names in your network? Yeah - we're gonna break that, hard. Deal with it." I'm sorry - the way I expect most of us to deal with it is to stub out the new domains at the border DNS servers, at least for our production networks. It is, in fact, what I've already done. So - anyone buying a .prod domain will be invisible to my network, sorry you wasted the money. In the long term, we'll adapt - but it's going to be a decade before a domain in .prod (for example) is actually reachable by many networks. And .corp is going up in May 2015! That's another that's going to be widely broken."
ICANN 50: Name Collision Occurrence Management Framework from ICANN June 23, 2014
More Info:
Resources - ICANN: "Name Collision Resources & Information"
https://www.icann.org/en/system/files/files/name-collision-02aug13-en.pdf
See also: domainmondo.com: ".... Claim: ICANN New gTLDs: "One of ICANN's key commitments is to promote competition in the domain name market while ensuring Internet security and stability."
Fact: ICANN has damaged the competitive domain name marketplace, and degraded Internet security and stability, by its incompetent and irresponsible flooding of the domain name ecosystem with more than 1000 new gTLDs [see ICANN: "the internet will explode"]."
ICANN: "Name Collision Occurrence Management Framework"
See also: domainmondo.com: ".... Claim: ICANN New gTLDs: "One of ICANN's key commitments is to promote competition in the domain name market while ensuring Internet security and stability."
Fact: ICANN has damaged the competitive domain name marketplace, and degraded Internet security and stability, by its incompetent and irresponsible flooding of the domain name ecosystem with more than 1000 new gTLDs [see ICANN: "the internet will explode"]."