Which of the following is a method to prevent Man in The Middle attacks?

The method involving checking if a website is secure with HTTPS is a valid approach to prevent Man in The Middle (MitM) attacks. When a website uses HTTPS, it means that the data transmitted between your browser and the web server is encrypted. This encryption makes it significantly more difficult for an attacker to intercept or tamper with the information being sent back and forth, thus safeguarding against unauthorized access and ensuring the integrity of the communication.

In contrast, relying solely on public WiFi can actually expose users to greater risks, as such networks are often less secure. Ignoring phishing emails does not directly prevent MitM attacks, as it can lead to situations where a user unknowingly provides sensitive information to an attacker. Lastly, using weak passwords can leave accounts vulnerable to unauthorized access, which does not address the issue of data interception in the context of MitM attacks. Therefore, ensuring a secure connection through HTTPS is a critical step in protecting data integrity and confidentiality while online.