With an explosion of small portable computers like smartphones and tablets, entering text is a pain.

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It works well enough when you're using it that way, but when you're just entering text the old-fashioned way, it can be finicky and imprecise.

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So Fastcase and others are paying Indian data-entry firms 40 to 60 cents per 1, 000 characters to "triple-key" the books into digital form, with three typists entering the text and a computer picking the version at least two agree upon.

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By entering certain strings of text into user input boxes on Web sites, cybercriminals are able to confuse their commands with data in a site's Structured Query Language (SQL) database and gain control of it, says Grossman.

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