How would Trend Micro know?
It is 100% fluff.
In truth, terrorists mainly just hide in the crowd (facebook, twitter, email) using simple techniques like code words. If you hear that the bride is on time then run!
That said, when encryption was rare, then it could be profiled. But once everyone start using it then that fails. Ubiquitous encrypted email would be the nightmare. (Encrypted messaging can be compromised at the proprietary servers.)
There is a real question here. If you discovered that the NSA was making spyware out of dead babies, how would you get the word out without going to jail?