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Anyone whose name and contact information appears in the 9.7GB stolen names contact information will likely be susceptible to opening emails purportedly from Ashley Madison, divorce lawyers and private investigators, says Tom Kellerman, chief cybersecurity officer for Trend Micro.

Unfortunately, the extortion attempts like the one against Mac are likely to increase in number, sophistication and targeting, says Tom Kellerman, chief cybersecurity officer at Trend Micro.

It's called "sextortion." Criminals contact users involved in illicit online activity and try to get money in exchange for their victim's silence. It's popular in South Korea,according to a report from security firm Trend Micro, where scammers try to initiate online relationships and then blackmail those who take the bait.
Foreign intelligence services and digital crime rings are probably “digging through” the mammoth database of the more than 36 million people who registered for the extramarital dating site Ashley Madison, said Tom Kellermann, chief cybersecurity officer at security firm Trend Micro.

Tom Kellerman, chief cybersecurity officer at Trend Micro, discusses the hacking of the Ashley Madison website and subsequent release of names and other information related to the site's users. He speaks on "Bloomberg Markets." [Video]