SECRET MSGS phone companies DON'T want you to know about

What is AT&T doing at 1111340002?That is what SIM expert David Allen Burgess asked when he found secret records of phone activity that the user had no idea about. Welcome to the magical world of proactive SIMs - SIM cards that send data off your phone without you or your phone's operating system knowing. There is no public documentation about these messages, there's no way to see all the information in the messages, and the cell companies won't talk about it. Are SIM cards more vulnerable than we'd thought?Huge thank you to David Allen Burgess for his time and expertise! You can read his original report here:https://medium.com/telecom-expert/what-is-at-t-doing-at-1111340002-c418876c212cTo make a tax-deductible (in the US) donation to NBTV, visit https://www.nbtv.media/supportSign up for the free CryptoBeat newsletter here:https://cryptobeat.substack.com/Beware of scammers, I will never give you a phone number or reach out to you with investment advice. I do not give investment advice.Visit the NBTV website:https://nbtv.mediaSupport the show