What happens next in this paragraph?

How to secure your website
Keep your website up to date.
Failing to update your website's software, security, and scripts when necessary is a sure way to allow intruders and malware to take advantage of your site.
This goes for patches from your website's hosting service as well (if applicable).
Whenever an update for your website is available, install it as immediately as possible. You should also keep your site's certificates up to date.