The article offers a deep dive into Attack Surface Management (ASM), a term that describes every potential vulnerability within an organization’s digital landscape. The author reflects on their journey from a novice bug hunter in 2018 to a vulnerability triager at HackerOne, revealing how their hands-on experience with tools and automation provided insights into ASM before it became a formalized concept. They emphasize that many organizations misunderstand their attack surface, often believing a simple web presence and email server equate to good security. In reality, the attack surface can be vast and filled with forgotten assets, such as abandoned subdomains and misconfigured cloud storage. The author stresses the importance of thorough reconnaissance to expose hidden vulnerabilities. For instance, organizations often overlook subdomains created for testing or development, which can remain active and vulnerable indefinitely. Tools like Subfinder and Amass can help detect these forgotten subdomains, while Certificate Transparency logs serve as a rich resource for discovering SSL certificates linked to an organization. Attackers leverage these insights to find old development environments or misconfigured servers that could potentially lead to breaches. The message is clear: organizations need a comprehensive approach to ASM, identifying all assets and ensuring they are properly secured to prevent bad actors from exploiting easy entry points.