SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/sec-separate-usb-work-home

Can you use your personal USB drive on a computer your employer owns? What does CISA advise?

No, keep personal and business USB drives separate.

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  1. Yes, if you scan it with antivirus first
  2. Yes, as long as the files are only photos
  3. No, keep personal and business USB drives separate ✔

Why: A drive that has been in your home computer could carry malware into the company network. In the other direction, a drive full of company files could leak at home. Two drives, two worlds.

Huh, didn't know that: CISA also suggests turning off Autorun so a drive cannot open itself the moment you plug it in.

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References

Answer: No, keep personal and business USB drives separate. A drive that has been in your home computer could carry malware into the company network. In the other direction, a drive full of company files could leak at home. Two drives, two worlds.

  1. CISA: Using Caution with USB Drives www.cisa.gov/news-events/news/using-caution-usb-drives
    Do not use personal USB drives on computers owned by your organization
    Checked 2026-10-10.

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