Which of the following is considered secure when using public Wi-Fi?

Using a VPN for data encryption while connected to public Wi-Fi is considered a secure practice because it helps to protect your data from potential threats that are common in such environments. Public Wi-Fi networks are often unsecured and can be susceptible to various types of cyberattacks, such as eavesdropping and man-in-the-middle attacks. A VPN, or Virtual Private Network, creates an encrypted tunnel between your device and the internet, which ensures that your data remains confidential and secure from prying eyes.

By encrypting the data being transmitted, a VPN makes it significantly harder for attackers to intercept or decipher sensitive information, such as passwords, credit card numbers, or personal messages. This layer of security is crucial when using public networks, where anyone within range may attempt to access unprotected data. The use of a VPN is a recommended best practice for maintaining privacy and security when online in a less secure environment, such as a coffee shop, airport, or a library.