Summary. Services such as Sucuri can monitor a website on a regular basis to ensure it’s not been hacked. In the same way a computer needs to have antivirus software, websites need anti-malware protection and detection. Anyone who manages a website for themselves or someone else needs to maintain the security of the website.
An advantage of choosing a fully managed hosting service, such as WordPress.com hosting, is that your website hosting provider takes responsibility for security monitoring and updates. [More about WordPress...]