Image: eff.org
Google pushed an update to some phones running Android 12 to allow 2G to be disabled by the user. This is significant because cell site simulators used by police in the U.S. can impersonate cell towers and force a phone to downgrade to a 2G connection. This then allows the cell site simulator to crack the weaker 2G encryption in real time and snoop on any phones connected to it.
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