How does a VPN enhance security for remote workers?

A VPN, or Virtual Private Network, enhances security for remote workers primarily by encrypting internet traffic. This encryption process transforms the data into a format that is unreadable to anyone who might intercept it while it travels over public networks. This is crucial for remote workers who often connect to the internet through unsecured or public Wi-Fi networks, as it protects sensitive information such as personal credentials, financial transactions, and confidential business data.

By using encryption, the VPN creates a secure 'tunnel' for data to travel, preventing unauthorized access and safeguarding against interception by hackers or malicious entities. This level of protection is especially important for remote workers who may be using their devices in cafes, airports, or other locations where the security of the network cannot be guaranteed.

In contrast, the other options do not accurately represent the primary security function of a VPN. Faster internet connection may be a byproduct in some cases, but that is not the main purpose of a VPN. Similarly, blocking all incoming network connections is an action that firewalls typically perform, not VPNs. Lastly, while a VPN may provide secure access over public Wi-Fi, it does not allow unrestricted access; rather, it secures the connection against potential threats on those networks.