Keep the latest version of PHP on your server

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All your WordPress files are developed using PHP codes and it is the foundation of your WordPress site, so it is obvious that the foundation should be strong. Therefore, it is important to use only the latest version of PHP. PHP versions are supported for up to 2 years to protect against security issues. During this period of time, all the necessary security patches are provided by the developers. After that, it becomes obsolete. The latest version of PHP is 7.3, which is optimized for better speed and is also much more secure than its previous versions. Versions below PHP 7.0 are insecure. So, you can use versions 7.0, 7.1, 7.2 or 7.3. WPOven has chinese overseas canada database abandoned older versions of PHP and only uses PHP version 7.0 and above. You can easily choose the version of PHP you want to use, which reduces the vulnerability of WordPress.

Make frequent backups
It is always recommended to backup your WordPress site files as well as the database frequently. You can backup manually as well as using some WordPress plugins like UpdraftPlus, VaultPress, BackupBuddy or any other backup plugins. You can use these plugins to schedule automatic backups. While choosing a plugin, make sure that it has an easy restore option. Keeping the backups off-server is the best approach as the files are safe in case of any unwanted incident on the server.

WordPress Backup Services : There are some offline WordPress backup services that store backups in the cloud. Some of the paid services are:

VaultPress: This is a subscription-based backup service and a comprehensive security solution that includes regular scanning, an anti-spam system, uptime monitoring , and other security features .
WPOven : As part of their service, they back up your main files and databases to Amazon S3 and have a 1- click restore option . Depending on the package you choose, you can choose the frequency of backups (even 2x a day) and choose a US or EU server.
BlogVault: It is a WordPress backup, migration, staging, recovery and management solution provider with 100% recovery rate.