These "flaws" sound like they were built on purpose to allow intelligence agencies to (illegally) intercept communications, even without the help of carriers.

These "flaws" sound like they were built on purpose to allow intelligence agencies to (illegally) intercept communications, even without the help of carriers. These and other flaws are probably what Stingrays has been using for a while to intercept LTE communications, for some time now: https://arstechnica.com/information-technology/2015/10/low-cost-imsi-catcher-for-4glte-networks-track-phones-precise-locations/ https://arstechnica.com/information-technology/2015/10/low-c... https://www.zdnet.com/article/stingray-security-flaw-cell-networks-phone-tracking-surveillance/ https://www.zdnet.com/article/stingray-security-flaw-cell-ne...