Site security on Flywheel

Updated on January 9th, 2023

This help document is specific to the Flywheel Cloud Platform.


Looking for the Site Health Checker? Check out this help doc. For best practices to improve your site’s security check out this help doc

Secure Site - WordPress Core

WordPress core files are locked down

One of the great things about WordPress is that everything is built around the same core software.  This allows plugin and theme authors to create awesome tools and designs that can be used by anybody running WordPress.

One of the not-so-great things about WordPress is that the same core that makes plugin and theme development easy can also make spreading malware easy.  Hackers love code shared by a large number of people since it allows their malicious changes to one piece of software to then to achieve wide-spread damage. What better place to make these kinds of changes than in the set of files every WordPress site is guaranteed to have: the WordPress core?

On Flywheel, nobody can overwrite your WordPress core files.

Everything in your WordPress install is locked down tight, aside from your custom content. Does somebody want to edit your wp-config.php file in order to peddle creepy products on your site? Not on our watch!


It is worth noting that locking down core files means users also can’t edit these things. This is a good thing because it’s best practice to leave core files alone as they’ll get swapped out in WordPress updates. You don’t want your hard work getting wiped out every time WordPress is updated (quite often). If there are files like wp-config.php that you’d like to make changes to, just let our team know and we’ll make those for you! Unlike manual edits, these will carry over from update to update.

Shield - WordPress up to date

Automatic WordPress updates

In order to prevent outsiders meddling with your stuff, we make sure your site is running the latest and greatest version of WordPress. These updates often include security patches, which close any doors and windows that hackers may have found in previous versions.

On Flywheel, these updates are automatic and usually happen within a few days of their release.


While we strongly advise that our customers stay on the automatic update cycle, we will allow customers to stay on older major releases of WordPress. We will still provide periodic minor security updates to these older versions as they are released to keep your sites secure. That being said, it is very important to us that sites on Flywheel do not fall more than two major releases behind the update schedule. If they do, we may reach out to you work out a strategy for getting back on the update wagon.

Insecure passwords? Not on our watch.

Although it may not seem like a big deal, having hard-to-guess username and passwords really goes a long way on WordPress. Due to the uniform structure of WordPress, a lot of web bots will crawl across websites, simply appending a /wp-admin to the domain name. If the page loads, the bot will start trying username and password combos starting with some of the most common insecure passwords. So if you have a user named admin and a password of password1234, you’re at a pretty high risk of getting hacked.

That’s why Flywheel goes to great lengths to ensure that our customers use strong passwords. From our app to WordPress itself, if you try to create a new password that doesn’t make the cut, we’ll let you know.


A secure password doesn’t have to be impossible to remember. Randall over at xkcd has a comic to help you come up with a super-secure password that you won’t forget. If you’d like to learn about hiding your wp-login page or additional security steps, check out our article here.

Intelligent IP Ban

Intelligent IP blocking

Intelligent IP address blocking on Flywheel detects intruders and blocks them across all sites on our servers within seconds.
We monitor popular points of entry for hackers and immediately lock out any IP address trying to get through. These points include:

  • Failed SSH Access Attempts
  • Failed WordPress Login Attempts

Flywheel uses a variety of techniques to block traffic starting with preventing known malicious IP addresses from opening a session with the server, which is a very severe and immediate action.

Proactive Malware Scan

Malware prevention

We pride ourselves on keeping the bad guys out of your site’s files and database through the preventative security measures mentioned above. That being said, malware prevention is an ongoing cat and mouse game where systems have to react and adapt to the ever-changing security gaps introduced by third-party plugins, third-party themes, or weak passwords.

One way we combat this on Flywheel is by providing Plugin Security Alerts via email for each of your sites. That way, if a vulnerability is found, you can quickly update the plugin and secure your site.

In the event that you do find your site compromised by a plugin or theme vulnerability, Flywheel’s Happiness Engineers can jump in right away and get to work cleaning up the infection. We’ll also notify you of our progress along the way.

Free malware removal

In the rare event of a site getting hacked, our incredible support team of WordPress experts will quickly and carefully remove the malware for you.  For free.

Steps that you can complete prior to cleanup are updating all themes and plugins on the site to their most recent version, uninstalling any plugins or themes that aren’t being used any longer, and updating all admin user passwords to something as strong as possible. Since outdated plugin/theme versions and insecure passwords are overwhelmingly the cause behind WordPress sites becoming infected with malware, taking care of these updates as soon as possible will also help us to ensure the site stays clean while we’re working on it.

Fastly WAF

The WAF detects malicious request traffic sent over HTTP and HTTPS using rules based on Fastly, Trustwave ModSecurity Rules, and the OWASP Top Ten. It helps protect against application-layer (layer 7) attacks such as SQL injection, cross-site scripting, and WordPress specific vulnerabilities.

Blocking is done at the edge, so malicious traffic is never sent down to the Flywheel Cloud Platform.

We have Flywheel branded 403 pages which will display request ID’s when a customer hits a blocked rule. This helps support narrow down the issue when troubleshooting.

Need help?

If you have any questions our Happiness Engineers are here to help!

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