While no website platform is bulletproof in terms of security and attacks, as Webflow does not use plugins this can often be a common source of security vulnerabilities with WordPress. Additionally, all Webflow sites are hosted on Amazon's AWS platform which is known for its high-security systems. We at Socially Inspire still give our clients advice in keeping with best practices for website security such as making sure all passwords are created with a strong password strength.
No, you do not need to know how to code a website in order to use Webflow. As Webflow is a visual website builder it allows you to build web pages by using a drag-and-drop interface. You can use Webflow to design and build your website without writing a single line of code. If you wish to use code within your website then Webflow does allow you to add custom code but for a beginner, the webflow designer and editor are easy to use
One advantage of Webflow over WordPress is that it has native features for SEO, so you don't need to use third-party plugins to make essential on-page SEO adjustments. However, WordPress can be more powerful for SEO when combined with one or more plugins but depending on the type of plugins you use it can become costly and has the potential to slow your website down where as Webflow requires no SEO plugins.
Webflow offers a number of pricing plans with each depending on the type of website you have and what you are trying to achieve with your website. View Webflow's Pricing here