To solve this question, the user needs to have knowledge of web security and common malicious techniques used by hackers.

The technique described in the question is known as "Clickjacking", which is used to trick web users into clicking on a button or link that is disguised as something else, thereby revealing confidential information or taking control of their computer.

Now, let's go through each option and explain why it is right or wrong:

A. Clickjacking: This option is correct. Clickjacking is a malicious technique used by hackers to deceive web users into clicking on a disguised button or link, which results in the user revealing confidential information or giving control of their computer to the attacker.

B. RoughJacking: This option is incorrect. "RoughJacking" is not a known term in web security, and there is no evidence to suggest that it is a malicious technique used by hackers.

C. CyberJacking: This option is incorrect. "CyberJacking" is a broad term that can refer to a range of malicious activities, but it is not specific to the technique described in the question.

D. CrackJacking: This option is incorrect. "CrackJacking" is not a known term in web security, and there is no evidence to suggest that it is a malicious technique used by hackers.

Therefore, the correct answer is: A. Clickjacking.