Thieves Can Nab Your Data in a Few Minutes for a Few Bucks

Thieves Can Now Nab Your Data in a Few Minutes for a Few Bucks

‘If someone wants to find my Social Security number, it will take them exactly $3 and five minutes,’ a data security specialist said

As investigators work to assess who hacked Marriott International Inc. and the extent of the damage, one place they are hunting is the shadowy digital bazaars where thieves and spies trade stolen personal data.

A seemingly endless string of breaches have hit big companies and their users in recent years: 500 million potential victims at Marriott’s Starwood properties; 117 million users in the 2012 hack of LinkedIn; three billion at Yahoo in 2013. Often, these attacks fuel a black market awash in pilfered data bought, sold...