This article from Detectify emphasizes the importance of thoroughly classifying every web application and asset within an organization's attack surface, utilizing various methods and data points such as DNS records, IP addresses, and HTTP analysis. It stresses that merely knowing the existence of an asset isn't sufficient for effective security; understanding each asset's exact nature is crucial. The article outlines the complexities of ensuring security, highlighting that attackers focus only on what is accessible to them. Detectify's research reveals that many organizations fail to test a significant portion of their web applications, underscoring the need for a comprehensive approach to asset classification. By employing a range of tools and techniques, including outside-in analysis and examining data points like SSL/TLS certificates, HTTP response codes, and HTML content, security practitioners can gain valuable insights into their attack surfaces. This deeper understanding aids in applying the correct security measures and ensures that the organization's Configuration Management Database (CMDB) accurately reflects what is exposed, potentially preventing misconfigurations and vulnerabilities.