Here are some tips to improve the security of a WordPress site:
1. Keep your WordPress site and plugins updated to their latest version.
2. Use strong and unique passwords for your login credentials.
3. Limit the number of login attempts to prevent brute force attacks.
4. Use a security plugin like Wordfence or Sucuri to scan for vulnerabilities and add extra layers of security.
5. Keep a backup of your site so that you can restore it in case of any mishap.
6. Use HTTPS protocol to encrypt the data communication between your website and user’s browser.
7. Use two-factor authentication (2FA) to enhance the security of your login credentials.
8. Disable file editing in WordPress to prevent unauthorized access to your site’s data.
9. Use a web application firewall (WAF) to prevent common attacks, such as cross-site scripting (XSS), SQL injection, and file uploads.
10. Use a hosting provider that provides server-level security measures, such as intrusion detection and prevention systems.