Once upon a time, before the Internet, laptop and tablet computers, and smart phones, there was a simple way for information-technology departments to keep their organizations’ data secure: limit the number of places their computer systems could be accessed and the number of people who could access them.

Those days are gone.

“From a threat perspective, it just keeps growing,” said Christopher Burgher, a principal in the Availability Services Consulting unit of Wayne-based SunGard Data Systems Inc.’s Availability Services business.

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