A new market, black as ink, printer toner

A $1.5 million scheme at the prestigious Memorial Sloan-Kettering Cancer Center exploited what New York City authorities describe as a largely overlooked, yet lucrative black market for toner cartridges and other office supplies. Businesses have long endured employees pilfering pens, paper clips and other items for personal use, called "supply-jacking." But schemes like Manhattan hospital clerk Marque Gumbs's go much further.