As a security administrator, you've implemented a new company policy to review firewall logs daily. During this review, you notice numerous login attempts from foreign IP addresses outside of business hours. Based on this information, which of the following actions should be prioritized to enhance network security?
Conduct an additional security awareness training session focusing on foreign cyber threats
Update the firmware on the firewall to the latest version
Configure account lockout thresholds to prevent brute-force attacks
Review the latest operating system patches for all company servers