huh? Making your presentation more interesting through the use of multimedia can help to improve the audience's focus. PowerPoint allows you to use images, audio and video to have a greater visual impact. These visual and audio cues may also help a presenter be more improvisational and interactive with the audience.
When talking about computer security, we can define covert channels as an attack on a system capable of creating a loophole for information objects transfer between various processes that would normally not allow communication under the computer security policy. Hence, the best defenses system against this kind of attack is via Intrusion Defense System and Intrusion Prevention System and relentlessly "watching all aspects of an IT infrastructure for aberrant or abnormal events of any type."
