Your phone number is the skeleton key to your digital life, and carriers have spent years handing out copies to anyone with a decent script. Resetting a bank password, recovering an email account, approving a crypto withdrawal: All of it can run through a text message sent to a number that a call-center rep can reassign in minutes.
The good news is that all three major U.S. carriers now let you lock your number with a toggle. Here’s how the attacks work and where…
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Source lifehacker.com
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