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I opened my Terminal today and saw this:

StaceysiPhone6s:~ jcz$

  • Who is Stacey?
  • Why is she in my Terminal?
  • What happened?
  • What should I be worried about?
  • How do I fix it?
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1 Answer 1

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At some point, your network assigned StaceysiPhone6s an IP address. Then, your laptop got that IP address. Your Mac then looked up the DHCP logs to find out who 'owned' that IP and found "StaceysiPhone6s". So, it used that info to set the local hostname value.

Example: https://apple.stackexchange.com/questions/30552/os-x-computer-name-not-matching-what-shows-on-terminal

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  • 9
    Perfect, very reassuring. Thanks for not being so alarmist!
    – Jeff
    May 1, 2017 at 16:20
  • 114
    oh, I forgot to add: BURN YOUR LAPTOP AND ANY USB DEVICE THAT YOU EVER PLUGGED IN! And you should probably burn any flat surface it ever touched for good measure.
    – schroeder ♦
    May 1, 2017 at 16:21
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    Not taking any chances, I'll start with self-immolation
    – Jeff
    May 1, 2017 at 16:23
  • 76
    Good man, you'll go far in infosec!
    – schroeder ♦
    May 1, 2017 at 16:30
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    But that still leaves the question: Who is Stacey and what was she doing with her iPhone on your network?
    – Stephan Bijzitter
    May 3, 2017 at 9:54

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