Account security with PUK and/or PIN and what's the difference

startedwithasmile

    With all the recent phone porting scans I figured it would be good to add some security to my account however I am confused as to what the difference is with a SIM PIN and a PUK and should I enable both or just one? and do I need to do this for each device? Can I do this online or via 611?

     

    Perhaps T-Mobile has a document but it would be good to post something for lay people on "Here's what you should do and how to do it"...

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