SAN FRANCISCO — Target may have been an easy bull’s-eye for criminal hackers intent on stealing credit card information, but the theft of records for 40 million store customers was hardly the worst security breach among big retailers in recent years. And the incident revealed on Thursday is unlikely to be the last. Security experts say the Target hack is a reminder of security problems facing many retailers that won’t easily go away: There are weaknesses in the way payment information travels between retailers and banks. There is plenty of money to be made on the black market selling stolen credit card numbers, which can go for as little as a quarter or as much as $45 each.
Ref :http://www.nytimes.com/2013/12/20/technology/target-stolen-shopper-data.html?_r=0Also see http://drkhalid.blogspot.in/2013/07/whats-cost-of-credit-card-information.html
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