Ad industry to Apple: ‘Deeply concerned’ about Safari’s new ad-tracking restrictions

An attendee uses an Apple Inc. iPhone to take a photograph during the TechCrunch Disrupt 2017 in San Francisco, California, U.S., on Monday, Sept. 18, 2017. TechCrunch Disrupt, the world's leading authority in debuting revolutionary startups, gathers the brightest entrepreneurs, investors, hackers, and tech fans for on-stage interviews. Photographer: David Paul Morris/Bloomberg

The upcoming iOS 11 is winning plaudits in anticipation of its public reveal on Sept 19, but one group is not happy with Apple's updates to its Safari browser. 

Six of the leading players in the advertising industry penned an open letter to Apple, expressing their concerns about Safari's new "Intelligent Tracking Prevention" feature last week.