What is a consequence of allowing unrestricted access to hardware devices, such as USB drives?

Allowing unrestricted access to hardware devices like USB drives significantly heightens the risk of data theft. When users can freely connect these devices to a system, they can easily transfer sensitive information or extract confidential data without any oversight. This unrestricted access can lead to unauthorized copying of files, spreading malware, or introducing rogue devices that can compromise the integrity of the system. Since USB drives are portable and often used for quick data transfers, they become a prime target for malicious activity, posing a serious threat to the security of information and the overall operating system.

The other options, while they may sound appealing, do not accurately reflect the core consequences associated with unrestricted access. Enhanced performance or improved user experience may be argued in controlled scenarios, but these benefits are overshadowed by the security risks involved. Similarly, operational efficiency for IT staff could potentially decrease due to the increase in security incidents and the subsequent need for more extensive monitoring and remediation efforts. Thus, the emphasis on the risk of data theft is essential in understanding the implications of such access.