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).
Select from the following.
(I) You may need to install software from a hard drive. Integrated linux has frequently produced patches that can ship easily from one location to another.;
(II) These patches can be purchased with security promises from your website and ship them to trusted individuals. Ensure that your website's blog is maintained.;
(III) Add a sign up sheet to each website you use to host your domain. This should include a header/footer, page number, and links to users' profiles.;
(IV) 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.;
(IV)