An attack on a website can be painful and can have a catastrophic effect. Cybersecurity is as important or more important than physical security for any business, organization, or government. Attackers generally try and exploit security vulnerabilities found in applications. There are bots on the Internet that are continually looking for sites that can be exploited. The first steps to protect your site is to put your site behind a firewall, which would help you protect any intrusion attacks from basic reconnaissance or even if it is even more sophisticated.
Source: https://thehackernews.com/2019/10/website-security-guide.html