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By: Hemang Doshi
February 29, 2016
Data Security: Simple Steps to Block USB Ports

By: Hemang Doshi
February 29, 2016
Data Security: Simple Steps to Block USB Ports
Needless to say, the most common method for data leakage is through USB/Pen drive/Mass storage devices. Leakage is also high through PCs/laptops that get infected by viruses/malware.Most corporations have centralized control for usage of such devices. However, such controls are desirable in the offices of Chartered Accountants/CPA firms, as they have critical databases of their clients. It's generally observed that the Data Security Policies of CA/CPA firms are relatively weak and can be easily compromised.In this article, we'll explore the simple steps for blocking USB Ports i.e. blocking of Pen Drive/Mass Storage Devices.Please note: No software is required for controlling such devices. (Yes. It’s free of cost. So, go ahead (:- ) There are 2 options to achieve our objective:- Through the Registry
- Through the Device Manager
- Go to Start > Run , type “regedit” and press enter to open the registry editor
- Navigate to the following key:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesUSBSTOR
In the right pane, select Start and change the value to 4 (the value 3 is to enable USB Storage). Click OK. This will disable your USB port.Please remember:Value | Function |
3 | To enable USB Port |
4 | To disable USB Port |
- Go to Start > Run , type “Device Manager” and press enter to open the Device Manager
- Navigate to the following key: Universal Service Bus Controllers
- The list of installed devices will appear. Select and right click. Select ‘Disable Option’ from the menu.
Prepared By: CA. Hemang Doshi , CISA, FII