Security is maintenance, not a project you finish. A short routine beats an occasional large effort.
WEEKLY, ABOUT TEN MINUTES
Apply available updates to your site software. Glance at cPanel > Resource Usage for unusual spikes. Confirm your backups actually ran. Check the site loads correctly from a phone and from a private browsing window.
MONTHLY, ABOUT THIRTY MINUTES
Run a full ImunifyAV scan. Review the administrator user list on every site. Review FTP and email accounts, and delete unused ones. Check disk and inode usage. Check Metrics > Errors for recurring problems. Test-restore a backup to a staging subdomain occasionally.
QUARTERLY
Change important passwords. Review which plugins and themes are still maintained by their developers. Check your PHP version is still supported. Review who has access to what, including third-party services. Re-read the security checklist.
AFTER ANY INCIDENT
Write down what happened, what you changed, and what you would do differently. Six months later you will not remember, and the note is what stops the same thing recurring.
If any of this raises a question, open a ticket. We would rather answer a question than clean up an incident.
