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For more information, read the Mac USB storage device control documentation for detailed guidance on policy deployment (including examples of USB device control configurations). USB device control policies can be deployed using, Intune, and manual deployment. What are the available options to deploy USB storage device control policies for Mac? | where ActionType = 'UsbDriveMount' or ActionType = 'UsbDriveUnmount' or ActionType = 'UsbDriveDriveLetterChanged' USB device control events can also be explored using advanced hunting queries. Security teams have visibility into instances of restricted actions involving USB storage devices in the Microsoft Defender Security Center: In cases when the USB device control policy restricts Mac end user actions, a notification appears informing the end user about the restriction imposed by the organization: When a USB device does not match any of the nested entries, the access level for this device defaults to the top-level permission. The policy is evaluated from the most specific entry to the most general one.

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Finally, for each product there are serial numbers denoting specific USB devices. The USB device control policy is hierarchical. The custom policy allows customization of the URL where user is redirected to when interacting with an end user facing “device restricted” notification.To achieve a high degree of granularity, USB access level can be specified for Product ID, Vendor ID, and Serial Number.USB device access can be set to Read, Write, Execute, No access.The capability supports Audit and Block enforcement levels.The access level is controlled through custom policies.

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USB storage device control for Mac is designed to regulate the level of access given to external USB storage devices (including SD cards). What level of USB device control comes with this new capability? Enabling removable device control policies reduces the attack surface on user’s machines and protects organizations against malware and data loss in these scenarios. Many users will plug in USB removable storage devices without considering their potential security risk. Preventing threats and securing your organization takes a multi-layered approach. Today we are thrilled to announce the public preview of USB storage device control for Mac! In line with our commitment to rapidly expand Microsoft Defender for Endpoint cross-platform capabilities, we are preparing a set of enhancements to further reduce organizational exposure attributed to common end user activities. Microsoft Defender for Endpoint on Mac USB storage device control is in general availability as of July 2021.