Security overhaul of Magento 2.3.4 store

We have a website built on Magento 2, www.autotechcylinderheads.com

We thought it was being updated, but it is actually running 2.3.4.

This has come to light after recently suffering downtime on the site and the compromise of an email address the site uses.

We are looking to move to a new host - this will likely be handled by the new provider.

This project however will be to do a thorough security overhaul of the site, ensuring the site and its extensions are all appropriately hardened and that no malware or similar has found its way into the site.

Once the work is complete we will probably be looking to do an ongoing recurring project to keep it up to date and make minor changes to the site as and when required.

List of installed extensions can be supplied.