Suggestions of coded messages/steganography were made, but I'm struggling to find anything concrete:
> Suspected ringleader Mohamed Atta was seen repeatedly by witnesses using his Hotmail account at public libraries in Florida to surf the Internet, downloading what appeared to be pictures of children and scenes of the Middle East.[1]
> Many of the hijackers were frequent visitors to libraries and internet cafes in Florida, where they are believed to have received their final orders in coded message.[2]
Pre-9/11:
> Through weeks of interviews with U.S. law-enforcement officials and experts, USA TODAY has learned new details of how extremists hide maps and photographs of terrorist targets — and post instructions for terrorist activities — on sports chat rooms, pornographic bulletin boards and other popular Web sites.[3]
Didn't the 9/11 hijackers communicate by uploading images of basketball players to sports discussion boards?
Source if you have it please.
Suggestions of coded messages/steganography were made, but I'm struggling to find anything concrete:
> Suspected ringleader Mohamed Atta was seen repeatedly by witnesses using his Hotmail account at public libraries in Florida to surf the Internet, downloading what appeared to be pictures of children and scenes of the Middle East.[1]
> Many of the hijackers were frequent visitors to libraries and internet cafes in Florida, where they are believed to have received their final orders in coded message.[2]
Pre-9/11:
> Through weeks of interviews with U.S. law-enforcement officials and experts, USA TODAY has learned new details of how extremists hide maps and photographs of terrorist targets — and post instructions for terrorist activities — on sports chat rooms, pornographic bulletin boards and other popular Web sites.[3]
[1] https://web.archive.org/web/20011005232014/https://abcnews.g...
[2] https://www.theregister.com/2001/10/11/iomart_cashes_in_on_w... ([1] and [2] found via https://www.giac.org/paper/gsec/3494/steganography-age-terro...)
[3] https://web.archive.org/web/20030606200613/http://www.usatod... (found via https://core.ac.uk/download/pdf/11308369.pdf)
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