March 20, 2023, 2:47 p.m. | BrianKrebs

Security Boulevard securityboulevard.com

A new breach involving data from nine million AT&T customers is a fresh reminder that your mobile provider likely collects and shares a great deal of information about where you go and what you do with your mobile device -- unless and until you affirmatively opt out of this data collection. Here's a primer on why you might want to do that, and how.

Certain questions might be coming to mind right now, like "What the heck is CPNI?" And, …

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