How does a virtual private network (VPN) enhance security?

A virtual private network (VPN) significantly enhances security by encrypting internet connections, which protects data transmitted over the network from eavesdropping. When data is encrypted, it is converted into a secure format that can only be read by someone who possesses the corresponding decryption key. This means that even if a malicious actor were to intercept the data being transmitted, they would not be able to decipher it without the key.

This encryption capability provides a critical layer of security, especially when using public networks, such as those found in coffee shops or airports, where the risk of data interception is heightened. By protecting sensitive information—such as passwords, personal messages, and financial information—VPNs play a vital role in safeguarding user privacy and preventing unauthorized access to private data.

While limiting internet access to authorized users and monitoring network activity might be important aspects of overall security strategies, they do not directly relate to the core function of a VPN. Similarly, the notion of allowing unlimited access to all networks contradicts the purpose of a VPN, which is to create secure, private connections rather than unrestricted access.