Here are some ways you can safeguard your WordPress sites and prevent them from being hacked:

1. Keep WordPress and all plugins/themes updated: Regularly updating your WordPress version, plugins, and themes can help prevent hackers from exploiting known vulnerabilities.
2. Use strong passwords: Make sure you use strong, unique passwords for all accounts associated with your WordPress site, including your hosting account, FTP, and WordPress admin account. Use a password manager to generate and store strong passwords.
3. Use secure passwords for all accounts: In addition to using strong passwords, make sure all user accounts associated with your WordPress site have secure passwords.
4. Limit login attempts: Install a plugin that limits the number of login attempts a user can make before being locked out. This can help prevent brute-force attacks.
5. Use two-factor authentication: Enabling two-factor authentication (2FA) adds an extra layer of security to your WordPress site. Users will need to enter a unique code in addition to their password to log in.
6. Install security plugins: There are many security plugins available for WordPress that can help protect your site from attacks, such as Wordfence, Sucuri Security, and iThemes Security.
7. Backup regularly: Always back up your site regularly. In case your site is hacked or infected, you can restore the site to the last known clean backup.
8. Use a web application firewall (WAF): A WAF can help protect your site by blocking malicious traffic and attacks before they reach your site.
9. Use secure hosting: Make sure your hosting provider is using secure servers, and check if they offer additional security features, such as SSL certificates.
10. Remove unused themes and plugins: If you are not using a theme or plugin, remove it from your WordPress site. Unused themes and plugins can provide an easy entry point for hackers to exploit vulnerabilities.
11. Use HTTPS/SSL: HTTPS/SSL encrypts the data transmitted between your site and your users’ browsers, making it more difficult for hackers to intercept and steal sensitive information.
12. Disable file editing: By default, WordPress allows you to edit files directly from the WordPress dashboard. Disabling this feature can help prevent hackers from gaining access to your site’s files through vulnerabilities in your site’s admin area.
13. Monitor site activity: Regularly monitor your site’s activity for suspicious behavior, such as unauthorized logins, changes to files or code, and unfamiliar user accounts.
14. Use a content delivery network (CDN): A CDN can help protect your site by distributing content across multiple servers, reducing the risk of downtime due to a single server failure or a DDoS attack.
15. Harden your server: If you are hosting your own server, take steps to harden your server by limiting access to your server, securing your server’s ports, and disabling unnecessary services