T-Mobile to share customers' web browsing data with advertisers unless they opt out2021-03-09 18:11 by Daniela
The ad-data-sharing program will also include former Sprint customers who are now part of T-Mobile. Sprint previously had a similar ad-sharing program that required users to opt into it. T-Mobile says it will mask users' identities, but privacy groups note how easy it is to link masked IDs to the people behind them.
"It's hard to say with a straight face, 'We're not going to share your name with it,'" Aaron Mackey, a lawyer for the Electronic Frontier Foundation, told the Wall Street Journal. "This type of data is very personal and revealing, and it's trivial to link that de-identified info back to you."
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