windows-itpro-docs/devices/surface/dma-protect.md

title, description, ms.prod, ms.mktglfcycl, ms.localizationpriority, ms.sitesec, author, ms.author, ms.topic, ms.date, ms.reviewer, manager, audience

title	description	ms.prod	ms.mktglfcycl	ms.localizationpriority	ms.sitesec	author	ms.author	ms.topic	ms.date	ms.reviewer	manager	audience
Surface DMA Protection	This article describes DMA protection on compatible Surface devices	w10	manage	medium	library	coveminer	greglin	article	6/10/2020	carlol	laurawi	itpro

DMA Protection on Surface devices

Direct Memory Access (DMA) protection is designed to mitigate potential security vulnerabilities associated with using removable SSDs or external storage devices. Newer Surface devices come with DMA Protection enabled by default. These include Surface Pro 7, Surface Laptop 3, and Surface Pro X. To check the presence of DMA protection feature on your device, open System Information (Start > msinfo32.exe), as shown in the figure below.

If a Surface removable SSD is tampered with, the device will shutoff power. The resulting reboot causes UEFI to wipe memory, to erase any residual data.