You’re at a conference outside the office when your smart phone receives a sensitive e-mail projecting your company’s fiscal health 
for the next six months, with details of a top-secret project that will rock Wall Street. You know enough to not read the message, so you save it. But later, back at the office, your boss is outraged; a competitor has just announced the very same project and is now reaping the stock price rewards that come with being the first to announce it. You remember that a representative of this competitor was seated just across the conference table from you. No one in the room had a laptop, only their smart phones. Yet somehow the competitor was able to eavesdrop on your e-mail.
In a sparsely attended talk at the end of the RSA Conference 2007 in San Francisco, Carl Banzhof, VP and chief technology evangelist for McAfee, outlined a scenario in which mobile phones–not laptops–could be used to sniff wireless packets, creating potentially awkward situations such as the one described above and opening up a whole new threat landscape when hackers start using smart phones for laptop attacks.
Security Watch: Hacking with smart phones - CNET reviews