Answer:
1. D. clickjacking
2. C. phishing
3. A. malware
4. B.single sign-on
Explanation:
Malware is a program that is designed to generate damage to computer or networks.
Single sign-on is a process that allows you to access several systems using the same ID and password.
Phishing refers to using a false email to make people believe that it is from an institution so they will enter to a link given to steal information like passwords and credit card details.
Clickjacking is when people are tricked to click on a link that is different from what they think which can result on someone getting access to your computer or to your information.