The problem of interceptor top level domains

Misdirected communication has obvious security and privacy ramifications and is an age old problem that predates the Internet. In recent years it has been exacerbated by the arrival of electronic communication and the multitude of ways that communication can be misdirected. A new chapter in this age old problem is being written with the proliferation of top level domains (TLDs). This paper examines this problem in more detail and provides a full analysis of the current set of TLDs. In particular, we are concerned with TLDs that have a non-trivial probability of intercepting traffic intended for another TLD. Intercepting TLDs have the potential of intercepting a lot of traffic since a TLD can support many domain names.