As apple has few phones with large quantities of users, I am not surprised. I think you'll find similar penetration levels for any phone with lots of users It'

As apple has few phones with large quantities of users, I am not surprised. I think you'll find similar penetration levels for any phone with lots of users It's a resources/efficacy decision on the part of the NSA for targeting. It's the same reason there were "no" mac viruses for many years: there were far more windows users to target.