What type of attack involves unauthorized interception of communications?

The correct answer pertains to a Man-in-the-Middle Attack, which specifically involves an unauthorized party intercepting and potentially altering communication between two legitimate parties without their knowledge. This type of attack typically allows the attacker to eavesdrop on the exchange of information, steal sensitive data such as login credentials, or manipulate the data being transmitted.

In a Man-in-the-Middle Attack, the attacker effectively sits between the sender and receiver, capturing all communications that take place. This can occur in various contexts, such as over unsecured Wi-Fi networks, where an attacker can exploit the lack of encryption to listen in on conversations or data transfers.

Other types of attacks mentioned do not involve interception of communications in the same way. A Denial of Service Attack aims to disrupt service to users rather than intercept data. SQL Injection involves executing malicious SQL queries to manipulate databases, while Phishing involves attempting to deceive individuals into providing personal information, typically via emails or messages, rather than intercepting ongoing communications.