“There has been an explosion in the number of entities offering legitimate lookup services online over the past few years,” says Adam Tyler, chief innovation officer at CSID. “These lookup services range from Social Security number (SSN) search products to address and name verification services – all of which are used by legitimate and illegitimate users to identify and locate individuals both online and off.”

In this slide show, Sean Martin looks at a collection of public sources that provide this valuable information. In a follow-up slide show, Martin will dig into a sampling of dark web sources.

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