Which of the following best describes a zero-day attack?

Which of the following best describes a zero-day attack?
A . Exploiting a known vulnerability without a patch.
B . Attacking systems after a vulnerability is patched.
C . Using outdated software for malicious purposes.
D . Monitoring network traffic for suspicious activity.

View Answer

Answer: A

Explanation:

Zero-day attacks exploit software vulnerabilities that are unknown to vendors, leaving systems defenseless until a patch is released.