The best answer is B. Update user guidance to include suspicious incident reporting.
The phishing simulation results show that users were not fooled, which means awareness training is already helping them avoid credential theft. However, the employees deleted the email without reporting it. That means the organization missed an opportunity to:
investigate the message further
identify other recipients
block similar messages
improve incident response visibility
update defensive controls quickly
The most valuable next step is to train or guide users to report suspicious emails, not just ignore or delete them.
Why the other options are incorrect:
A. Implement a strict password reset policy for all senior managers after a security event.This does not address the gap identified by the exercise.
C. Conduct end-user training regarding spear-phishing attempts to raise awareness.The results already show awareness was effective enough to prevent users from falling for the message. The missing behavior is reporting.
D. Require remote workers to use a VPN when connecting to the organization ' s networks.This is unrelated to the phishing exercise outcome.
From a Security+ perspective, user awareness programs should teach employees to identify and report suspicious messages. Therefore, B is the best answer.