Which action should be taken to secure a public Wi-Fi connection?

Utilizing a VPN, or Virtual Private Network, is a crucial action to take when securing a public Wi-Fi connection. Public Wi-Fi networks are often less secure than private ones, making them susceptible to various threats, including data interception and unauthorized access. A VPN creates a secure, encrypted tunnel for your internet traffic, which helps protect your personal information from potential eavesdroppers on the same network.

This encryption means that even if someone were to intercept your data while connected to a public Wi-Fi, they would not be able to read or make sense of it without the encryption key. Additionally, a VPN can mask your IP address, providing an extra layer of anonymity and security. This is especially important when accessing sensitive information, such as banking details or personal emails, over a public connection.

In contrast, disabling firewalls would expose your device to potential threats, leaving it vulnerable to attacks. Leaving the default settings on devices often does not ensure optimum security and may not address the specific vulnerabilities associated with public networks. Engaging in file sharing on such unsecured networks can also increase the risk of data exposure to nearby devices. Thus, utilizing a VPN stands out as the most effective choice for securing a public Wi-Fi connection.