There are also additional clues pointing to Regin being a Five Eyes tool: In the QWERTY code, there are numerous references to cricket, a sport that enjoys extreme popularity in the Commonwealth.
Given the relative popularity of cricket in the US vs. the rest of the world, it's more likely that this was written outside the NSA.
Given the relative popularity of cricket in the US vs. the rest of the world, it's more likely that this was written outside the NSA.