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Policy Question

sutle asti

I am typing a proposal up to block all USB flash drives that have not been whitelisted. I just want to make sure I have the numbers correct as well as my understanding.

  1. When looking under Peripheral Control, what is the difference between Secure Removable Storage, and Removable Storage. Is this where approved devices would be seen after whitelist https://100001.onl/?

  2. Would this affect wireless keyboards and mice currently being used? Or do I have option to specify JUST flash drives?

Company is hard to get security policies approved and used so thank you for the accurate info.



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[edited by: Erick Jan at 2:14 AM (GMT -8) on 12 Jan 2024]
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    Secure removable are the devices where you plug them in, they typically auto-run some exe off a unencrypted smaller drive on the USB stick that prompts for a password to unlock the encrypted disk where you store the files. They are treated differently from USB so you can perhaps only allow secure removable storage if that's the policy.

    Wireless keyboards and mice should have a different classid to disk drives. For example, if you look in Device Manager when a USB storage device is attached and look at the details of it, it will typically be "class = diskdrive" and the "classguid={4d36e967-e325-11ce-bfc1-08002be10318}". This will not be confused with class Bluetooth for example.

    System-Defined Device Setup Classes Available to Vendors - Windows drivers | Microsoft Learn

    Disk Drives
    Class = DiskDrive
    ClassGuid = {4d36e967-e325-11ce-bfc1-08002be10318}
    This class includes hard disk drives. See also the HDC and SCSIAdapter classes.

    Bluetooth Devices
    Class = Bluetooth
    ClassGuid = {e0cbf06c-cd8b-4647-bb8a-263b43f0f974}
    (Windows XP SP1 and later versions of Windows) This class includes all Bluetooth devices.

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