Google gives scientists access to 300 million people's smartphone data

"Some privacy experts are not fretting about Google’s data collection. Ryan Calo, a University of Washington law professor, said concerns could involve the fairness of access to the data and the terms involved in accessing it, but he thinks there is not much cause for concern.

“I don’t see a lot of reason to worry. It is not as though Google is telling researchers where specific people are or have been,” Mr. Calo said in an email. “It looks like the data is aggregated and, as a researcher, I am in favor of access to industry data if the privacy harms can be mitigated.”"