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 cafe.
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.