What can be concluded about unsecured networks like "Free WiFi"?

Unsecured networks, such as "Free WiFi," are inherently vulnerable because they do not require authentication or encryption, making it easier for anyone to connect to them. While these networks can provide access to the internet without any barriers, they also expose users to various risks, including eavesdropping and data interception.

The conclusion that unsecured networks can be monitored for malicious activity is significant because it highlights the potential risks associated with using them. Since these networks lack security protocols, any data transmitted over them may be easily accessed by malicious actors. This means that users' online activities, including personal information, passwords, and sensitive communications, can be captured and analyzed. Security professionals often monitor such networks for signs of abnormal or malicious activity, which is crucial for identifying threats and protecting users.

In contrast, the other options might imply a false sense of security or suggest capabilities that unsecured networks simply do not possess. For example, claiming that these networks are always safe or that they prevent phishing attacks does not reflect the reality of their vulnerabilities. Similarly, suggesting that all devices connected to such networks will be secure contradicts the very nature of unsecured connections, where data can be easily exploited and compromised.