Originally Posted by
ninianclark
The internet history you are talking about is the browser cache and other logs which are stored on the persons device.
Any wanna be terrorist etc would have wiped that, or would have used a USB based OS like Kali Linux etc and then thrown away the usb stick.
The internet history I am talking about is the IP traffic, the destination IP address, what other protocols used etc.
Did they use the TOR (The Onion Router) and associated tools.
It is near on impossible to track such things as a matter of course, and the amount of data needed is huge. There are tools that can do it - but they wouldn't be able to cope with the levels of traffic. You could attempt to filter it - but with websites and communication methods ever changing - it's not as straight forward as people make out.