This has been going on for decades.
At first it was called Echelon which morphed into FiveEyes.
Technically, the five countries which make up FiveEyes can’t spy on their own people. So they spy on other countries and share the data with their FiveEye countries.
Go to the search link below to read about FiveEyes and Echelon:
It started back in the 1970’s when the NSA equipped the Canadian CSIS with the U.S. technology to use in the United States.