Prosper's insurer, Greenwich Insurance Company, has answered the complaint. As I expected, it cited to the exclusion for unregistered securities, saying the exemption from registration language only applies if there has been a public offering of stock or a public sale of debt securities.
Greenwich also cited to the exclusion for intentionally dishonest, fraudulent or criminal act or omission, or willful violation of law.
The (second) Fourth Affirmative Defense (attornie speak for "why we're not liable") is particularly interesting. It states:
[Prosper's] claim for coverage under the Policy is barred and/or limited in part by [Prosper's] May 28, 2008 Warranty and Representations Letter, in which [Prosper] made certain false representations, and then stated that it was agreed and understood that if such claim, civil or criminal litigation, administrative or regulatory proceeding or arbitration, including but not limited to any investigation, or knowledge information [sic] exists, then any such claim, civil or criminal litigation, administrative or regulatory proceeding or arbitration, including but not limited ot any investigation arising therefrom, or arising from such knowledge or information is excluded from additional limits being purchased under the proposed policy referenced above.
I'd like to see that letter!