I've seen many posts online about the insecurity of XAMPP, because it's designed as a developer tool. While there are some posts online about securing it, these appear to be outdated. For example this question's answer no longer works.
What can I do to make XAMPP more secure?
Making XAMPP more secure is the wrong goal.
XAMPP is a configuration of Apache, PHP, and MySQL that's optimized for development. If you're wanting to configure those tools for a production system, you shouldn't being using XAMPP at all - that's not its defined purpose. Instead, you should be configuring the individual components yourself, and there's plenty of information on how to harden each of them. Depending on the system you're installing onto, even their defaults may be significantly more secure than what you get with XAMPP.
