Ranum has spoken to USENIX audiences at LISA 1997,[REF] 1999 (tutorial)[REF] LISA 2000 (keynote),[REF] 2002,[REF] and 2003 (tutorial) [REF].
Ranum's work has been cited in at least 15 published U.S. patents,[REF] as well as numerous other computer and network security articles and books.