CompTIA Security+ (SY0-501) — Question 870

After downloading third-party software, a user begins receiving continuous pop-up messages stating the Windows antivirus is outdated. The user is unable to access any files or programs until the subscription is renewed with Bitcoin. Which of the following types of attacks is being executed?

Answer options

• A. Spyware
• B. Crypto-malware
• C. Adware
• D. Ransomware

Correct answer: D

Explanation

The correct answer is D, Ransomware, because it blocks access to the user's files and demands payment to restore access. The other options, such as Spyware and Adware, typically do not restrict access to files or demand payment in such a manner. Crypto-malware specifically refers to ransomware that encrypts files, but in this context, the focus is on the ransom demand itself.