Web Hosting Security
1. Use any standard anti-virus software like Norton, Kaspersky, McAfee, and scan your local machine. Make sure that your local machine is not infected from any viruses or malware. Also, ensure your computer is not having any keyloggers or spyware.
2. Ensure your Operating system (Windows, Linux, or macOS) is up-to-date and all security patches are applied.
3. Please analyze the access coming to your websites using tools under CPanel >> Metrics and if you found any suspicious activities then block the IP address using the Cpanel >> IP blocker.
4. Use File manager or log in to the server via ssh and remove all unwanted files from the server.
5. If you use any custom-built application software, contact your developer and make sure that it does not contain any SQL-injection, remote file inclusion vulnerability.
6. Update the Antivirus software on your computer to the latest version and run a complete antivirus scan on your local computer including all hard drives.
7. If you use any third-party application software like WordPress, Joomla, upgrade it to the latest stable and non-vulnerable version. Follow the steps mentioned by the vendor. You should contact the vendor support for doing so.