https://www.cnet.com/news/tech-companies-urge-supreme-court-to-protect-cell-phone-privacy-location-data-aclu/

More than a dozen prominent tech companies are urging the US Supreme Court to make it harder for law enforcement officials to obtain individuals' sensitive cell phone data.

The companies filed a friend-of-the-court brief with the Supreme Court on Monday, arguing that law enforcement officials should be required to obtain a warrant before accessing data on a cell phone customer's location.The 44-page brief, signed by Apple, Facebook, Google and Verizon, among several others, said greater privacy protections are needed as companies increasingly collect user data over digital technologies.