If your website has been hacked, take it offline immediately to prevent further damage. Scan your computer for malware and change all related passwords.
Use security tools to scan and clean your website, remove any malicious code, or restore from a recent, clean backup.
Identify and fix vulnerabilities, such as outdated software or weak passwords, and enhance security measures like installing a web application firewall and enabling two-factor authentication. Contact your hosting provider for assistance and monitor your website for suspicious activity.
Inform users if their data has been compromised and advise them to change their passwords. Regularly back up your website and create an incident response plan for future security breaches.