New York — How much is your personal data worth to you? A lot. (Thanks, Equifax.) And how much is it worth to an identity thief? You may be surprised, or insulted, or enraged, to find out. Verified high-limit credit cards from countries including the US, Japan, and South Korea are selling on the dark web for the bitcoin equivalent of about $10 to $20, according to an annual report on cyber-crime by SecureWorks, a unit of Dell. The dark web is "the collection of internet forums, digital shop fronts and chat rooms that cyber-criminals use to form alliances, trade tools and techniques, and sell compromised data that can include banking details, personally identifiable information and other content", as SecureWorks defines it. Verified means the seller has tested out transactions on the card and found it hasn’t been canceled yet. For scammers on a budget, there’s unverified stolen credit card data, which comes out to pennies a card when bought in bulk. Credit cards generally aren’t sell...

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