Osama bin Laden was in routine contact with several senior figures from the Pakistan's military and its intelligence arm while hiding in the country, British newspaper The Telegraph reported on Tuesday.
Whistle-blowing website Wikileaks had published five million e-mails and secret intelligence files from US security think tank Stratfor on Monday after being obtained by hacktivist group Anonymous.
Stratfor provides analysis of world affairs to major corporations, military officials and government agencies and was once likened by an American business magazine to a "shadow CIA".
The Telegraph reported that according to one of the e-mails, the firm had been given access to information papers collected from bin Laden's Abbotabad compound after US special forces attacked it last May, killing the al Qaeda leader.
The e-mail, from a Stratfor analyst, suggested that up to 12 officials in Pakistan's Inter-Services Intelligence (ISI) agency knew of the safe house.
"Mid to senior level ISI and Pak Mil with one retired Pak Mil General that had knowledge of the OBL arrangements and safehouse," the email said.
The internal email, however, did not name any of the Pakistani officials allegedly involved, but said the US could use the information as a bargaining chip in post raid negotiations with Islamabad.