Securing a website involves several best practices:

1. Keep software up-to-date: Regularly update all software, including the content management system, server software, and any plugins or extensions.
2. Use strong passwords and authentication methods: Require strong passwords, and consider using two-factor authentication.
3. Encrypt sensitive data: Use SSL/TLS encryption to protect sensitive information, such as login credentials and credit card numbers.
4. Regularly back up data: Keep regular backups of your website’s data and store them securely.
5. Limit access to sensitive areas: Only grant access to sensitive areas of the website to trusted users.
6. Monitor for attacks: Regularly monitor logs and use intrusion detection systems to identify potential security threats.
7. Train employees: Educate employees on how to detect and prevent security threats.
8. Secure the hosting environment: Choose a reputable hosting provider that offers secure servers and has a good track record of protecting customer data.

These are just a few of the many steps that can be taken to secure a website. The specific security measures required will depend on the type of website, its target audience, and the sensitive information it handles.