The Public Health Agency has censored thousands of pages of data on cellphone users it collected in the name of pandemic lockdown enforcement. The Agency invoked commercial confidentiality in refusing to disclose weekly reports drawn from cell tower tracking data on millions of mobile customers.

“We leveraged anonymized, population-aggregated, near real-time mobile device location data to estimate dynamic changes in population mobility patterns across the country,” said a weekly Canada Mobility Trends report. “Data contain only a unique device ID and there is no information pertaining to users themselves.”

“We have developed i

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