A large number of websites get hacked due to outdated WordPress versions because it allows hackers to exploits your websites. WordPress is an open-source software. This means the public is invited to use it, modify it or suggest changes to it. Developers around the world can contribute towards improving the software that also includes discovering security flaws.
Everyone around the world (including hackers) are well aware that a security flaw exists in the old versions of WordPress. Hackers use scanners to crawl through the web and find WordPress sites running on the old version. Once they find your websites as vulnerable, they can upload malicious code to harm your site or to completely erase your website.
You can also find thousands of articles related to this topic. Simply go to search engine www.google.com and search “Do websites get hacked due to old WordPress version?” hopefully you’ll be able to get more better understanding.
How to improve the WordPress security?
We strongly recommend you to install a plugin “All In One WP Security & Firewall” because it helps to add some extra security and firewall to your site by using a security plugin that enforces a lot of good security techniques.
The All In One WordPress Security plugin will take your website security to a whole new level. This plugin is designed and written by experts and is easy to use and understand. It reduces security risk by checking for vulnerabilities, and by implementing and enforcing the latest recommended WordPress security practices and techniques.
Please follow below link to read more about this plugin.