I had a "Device control violation".

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I plugged in my external harddrive and I noticed my laptop blanked for a second meaning my desktop icons disappeared and I saw a blank DOS window pop up and disappear. After a few seconds everything went back to normal. I ran my Trend virus scan and it said all clear (green checkmark). Afterwards, I unplugged my device and it warned me not to unplug because it was "in-use" only I had nothing open for it to be in use.  I took the hard drive and plugged it into my work laptop and their virus scan - Also Trend - immediately through a message: "Threats/Violation Found" - Device Control violations - Officescan detected unauthorized access to devices connected to your endpoint.
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Posted 1 year ago

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Tom Emmelot, Champion

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If you have "Protection on for USB devices" in Folder shield protection.
The best way to unplug your USB device is tho disconnect first

The Dutch word is uitwerpen, i think in English version it is Disconnect!

And then unplug your device, but that was always the correct way!
I think that was the reason for the message.

Hope you can test this.

Kind regards,
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Welcome to the Home Users Community, ethanroe.

May I ask if you tried to connect your external hard drive even before and did not receive the same issue? Device Control actually regulates access to external storage devices and network resources connected to the computer. So this does not necessarily mean that your external hard drive has a threat but connecting it is a violation to Device Control.

I'm sure you have IT professionals on where you work, it would be best to ask for assistance from them if your external hard drive has any threats. Feel free to keep us posted regarding this.