You're using WordPress which is good
really? I think that Wordpress is not the best.
And in the crypto world there are people who like to hack a site.
Not only in the crypto world that is sure.
No one says Wordpress is the best, i know there are other CMS like drupal, joomla, and others. But for this project, i feel like WordPress was the right tool to use, at least it worked fine for me and the site is full-auto.
We know internet is not a safe place, and hackers gonna hack. But that's why i always update the tools to use the last version, that's the secure way. And even if someone hack the site that wouldn't be a big deal because users don't need to be registered in the site to see the news, so, users are not risking their credentials with my service.