Drug maker Pfizer Inc. /quotes/zigman/238207/quotes/nls/pfe PFE +1.16% took down its official page on Facebook after the site was hacked by activists who put up unauthorized content late Tuesday. New York-based Pfizer is working with Facebook to understand how the incident occurred and how to prevent it from happening again, said Pfizer spokesman Ray Kerins. He said the company was hoping to restore its Facebook page as soon as possible. He declined to describe the unauthorized content. The incident is the latest in a series of internet attacks that has targeted government agencies and corporations for the past several months.
