The first was to rewrite an IBM database language called SQL into a form that would allow it to run on all kinds of computers, from mainframes to desktops.

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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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This traditional database platforms, known as relational database management systems (RDBMS) all use a language called SQL (structured query language).

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