What is the advantage of using a private virtual network (VPN) in cloud security?

A private virtual network (VPN) significantly enhances cloud security by encrypting data during transmission over the internet. This encryption ensures that sensitive information is protected from unauthorized access and potential interception by malicious actors. By employing a VPN, the data traveling between the user's device and the cloud service is encapsulated within a secure tunnel, making it much more difficult for attackers to access or tamper with it.

While other options mention some aspects related to network security or performance, they do not align with the primary benefits a VPN brings to cloud environments. For example, increasing data transfer speeds could be a possible outcome of optimized routing or local network conditions, but VPNs primarily focus on security rather than performance enhancements. Eliminating the need for password protection misrepresents the role of a VPN; it doesn't replace the need for secure authentication methods to control access to resources. Lastly, enhancing network visibility is generally achieved through monitoring tools, whereas a VPN's main goal is to secure data in transit rather than providing insights into network activities. Thus, securing the transmission of data stands out as the key advantage of deploying a VPN in cloud security.