Sunday, July 11, 2004: 6:00 pm (Area "B"): A look at the evolution of secure instant messaging and how AOL tried to shake off open source and non-vanilla clients by altering the AIM (oscar) protocol. The open source community adapted and readapted until AOL finally gave up. Phar, who has written the first secure messaging clients for Unix and Windows (BLAIM and Impasse), will discuss other IM issues, such as the buyout of ICQ by AOL and the subsequent change (and deterioration) of its protocol.