|It's not only keywords that matter. The context of the words can be determined as well. Also DPI (deep packet inspection) is being used. A quote sometimes attributed to J Edgar Hoover & sometimes to Nelson Rockefeller said "If you don't want it known, don't use the phone." We can use that same advice with email. |
These days, Facebook & Twitter make it much easier to monitor the net since everyone wants his 15 minutes of fame. I'm so glad that I don't use them. Google is also used to monitor the net.
Steve Rambam has plenty on the subject. Search for him on Google..
How do you know when a politician is lying? His mouth is moving.