Hackers operating from China stole sensitive information from Western oil companies, a U.S. security firm reported Thursday, adding to complaints about pervasive Internet crime traced to the country.

The report by McAfee Inc. did not identify the companies but said the “coordinated, covert and targeted” attacks began in November 2009 and targeted computers of oil and gas companies in the United States, Taiwan, Greece and Kazakhstan. It said the attackers stole information on operations, bidding for oil fields and financing. Get the full story »