Operating system Chrome OS will have a new security feature called USBGuard, which will restrict access to the USB port when the screen is locked. Currently, the functionality available in the Canary builds of Chrome OS, and will soon appear in the stable branch of the OS.
A new option will allow Google to protect users from third-party penetration in the file system of their personal computers. It is assumed that USBGuard is to prevent reading or code execution when a connected USB device if the screen is at this time blocked.
Therefore, Google intends to provide protection from attacks such as the “Rubber Ducky” (“Rubber ducky”), involving the use of malicious “flash drives” to simulate keystrokes and run malicious commands. Over the past few years appeared a lot of opportunities, for example, BadUSB, PoisonTap, USBdriveby or USBHarpoon with which anyone can create own tools to attack and extract data from the victim’s computer or infect it with malware. However, most of such attacks can be prevented by disabling the USB port.
We will remind, last summer Apple introduced a similar feature in iOS called USB Restricted Mode, which disables the communication via the USB port, if the mobile device has not been unlocked in the last hour.
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