Which of the following statements is/are correct about cyber attacks? Choose the correct answer from the options given below:

Only the statement that a virus is self-replicating malicious code on a computer is correct here.

Statement 2 is true because a virus makes copies of itself and spreads to other files and machines.

Statement 1 is false, since spyware secretly gathers information about a user rather than blocking website access.

Blocking access to a website is closer to what ransomware or a denial-of-service attack can do.

Statement 3 is false, since a denial-of-service attack floods a server rather than capturing keystrokes.

Capturing everything typed on a keyboard is the work of a keylogger, a different kind of spyware.