[5] The presentation was one of four scheduled to follow Jeff Moss' keynote address on the first day of the conference, titled "Cisco IOS Security Architecture".
Lynn's presentation began by covering security issues in services that allow users to make Voice over IP telephone calls.
[4] Later in the evening Lynn had heard that Cisco and ISS had filed a lawsuit and requested a temporary restraining order against Black Hat but not himself.
[4] This deal was almost called off due to an inadvertent mistake by Black Hat in which they had restored Lynn's presentation on their web server.
[10] Shortly after lawyers for Lynn and ISS / Cisco filed settlement papers, FBI agents from the Las Vegas office arrived at the conference to begin asking questions.
[10] Attendees of Black Hat Briefings, as well as many that also attended DEF CON, were not happy with vendors threatening legal action over vulnerability disclosure.
Mr. Lynn's research explores possible ways to expand exploitations of existing security vulnerabilities impacting routers.
He gave a brief statement to ZDNet UK saying "ISS has published rules for disclosure and that is what we stick to.
He gave a statement to the Washington Post saying "ISS and Cisco have been working on this in the background and didn't feel at this time that the material was ready for publication.