Cyber security：练习题

A user receives a text message appearing to be from a delivery service, claiming a package is held and requires a small fee to be paid via a link. The link leads to a site that steals credit card details. Which cyber security threat does this represent?

A cyber criminal manipulates a Domain Name Server (DNS) so that when a user types in a legitimate web address, they are directed to a fake website. What is the name of this specific threat?

Which of the following is a primary function of the Secure Socket Layer (SSL) security protocol?

A company's web server is suddenly overwhelmed by an enormous volume of traffic originating from thousands of different IP addresses worldwide, causing the website to become unavailable to legitimate users. What is the specific name for this type of cyber security threat?

Which of the following is a primary function of anti-spyware software?

Briefly define the cyber security threat known as pharming.

Describe a Distributed Denial of Service (DDoS) attack and its main objective.

Describe how a man-in-the-middle attack occurs through data interception and explain why the use of asymmetric encryption prevents an attacker from accessing the original data even if the transmission is compromised.

Malicious actors often use social engineering to gain unauthorized access to data.

a) Describe the aim of a social engineering attack.
b) Explain how the tone of a communication (such as an email) can be an indicator of a cyber security threat.

Various types of malware can infect a computer system.

a) Describe the process of how ransomware affects a user's data.
b) Explain how spyware operates to compromise a user's security.