Hackers may have used Pa. company to hit Target

Hackers may have used Pa. company to hit Target

NEW YORK (AP) — The hackers who stole millions of customers’ credit and debit card numbers from Target may have used a Pittsburgh-area heating and refrigeration business as the back door to get in. If that was, in fact, how they pulled it off – and investigators appear to be looking at that theory – it illustrates just how vulnerable big corporations have become as they expand and connect their computer networks to other companies to increase convenience and productivity.