Which of the following is the MOST likely cause of this issue?

A security analyst received an alert from the SIEM indicating numerous login attempts from users outside their usual geographic zones, all of which were initiated through the web-based mail server. The logs indicate all domain accounts experienced two login attempts during the same time frame.

Which of the following is the MOST likely cause of this issue?
A . A password-spraying attack was performed against the organization.
B . A DDoS attack was performed against the organization.
C . This was normal shift work activity; the SIEM’s AI is learning.
D . A credentialed external vulnerability scan was performed.

View Answer

Answer: A

Explanation:

Reference: https://doubleoctopus.com/security-wiki/threats-and-tools/password-spraying/