The solution was to have the presenter attract the audience and, in the role of a technology reporter, focus their attention on the subject of security.
He would then bring an SME to the stage and put him/her in the Hot Seat. In the style of a hard-hitting television reporter and often standing in the audience with a hand mike, the presenter would pose (pre-arranged) questions to the SME.
After the SME gave an insightful answer, the presenter would have a follow-up question or two. The presenter would then excuse the SME and wrap-up with suggested actions.