How Bin Laden Emailed Without Being Detected

Despite having no Internet access in his hideout, buy Osama bin Laden was a prolific email writer who built a painstaking system that kept him one step ahead of the U.S. government’s best eavesdroppers.

His methods, described in new detail to The Associated Press by a counterterrorism official and a second person briefed on the U.S. investigation, served him well for years and frustrated Western efforts to trace him through cyberspace. The arrangement allowed bin Laden to stay in touch worldwide without leaving any digital fingerprints behind.

The people spoke to the AP on condition of anonymity to discuss the sensitive intelligence analysis.

Bin Laden’s system was built on discipline and trust. But it also left behind an extensive archive of email exchanges for the U.S. to scour. The trove of electronic records pulled out of his compound after he was killed last week is revealing thousands of messages and potentially hundreds of email addresses, the AP has learned.

Holed up in his walled compound in northeast Pakistan with no phone or Internet capabilities, bin Laden would type a message on his computer without an Internet connection, then save it using a thumb-sized flash drive. He then passed the flash drive to a trusted courier, who would head for a distant Internet café.

At that location, the courier would plug the memory drive into a computer, copy bin Laden’s message into an email and send it. Reversing the process, the courier would copy any incoming email to the flash drive and return to the compound, where bin Laden would read his messages offline.-[source]