Engadget reports that there is a huge security flaw in wireless presenters, you know, those things you can plug into the computer so you can click the slides forward on your PowerPoint for yourself. Apparently, there is no encryption, no security and the computer sees them as a full mouse and keyboard. A hacker could send all sorts of disruptive commands to your computer while you are presenting, not the least of which would be interrupting your presentation.
So, if you see anyone with a rig like the one in the picture, you might want to have the ushers "deal" with them.
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