Spear phishing is an email-spoofing attack that targets a specific organization or individual, seeking unauthorized access to sensitive information. Spear-phishing attempts are not typically initiated by random hackers, but are more likely to be conducted by perpetrators out for financial gain, trade secrets or military information. As with emails used in regular phishing expeditions, spear phishing messages appear to come from a trusted source. Phishing messages usually appear to come from a large and well-known company or website with a broad membership base, such as Google or PayPal. In the case of spear phishing, however, the apparent source of the email is likely to be an individual within the recipient's own company -- generally, someone in a position of authority -- or from someone the target knows personally. Visiting United States Military Academy professor and National Security Agency official Aaron Ferguson called it the "colonel effect." To illustrate his point, Ferguson sent out a message to 500 cadets, asking them to click a link to verify grades. Ferguson's message appeared to come from a Col. Robert Melville of West Point. Over 80% of recipients clicked the link in the message. In response, they received a notification that they'd been duped and a warning that their behavior could have resulted in downloads of spyware, Trojan horses and/or other malware. Many enterprise employees have learned to be suspicious of unexpected requests for confidential information and will not divulge personal data in response to emails or click on links in messages unless they are positive about the source. The success of spear phishing depends upon three things: The apparent source must appear to be a known and trusted individual; there is information within the message that supports its validity, and the request the individual makes seems to have a logical basis. Read more... |
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