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vantage, published by Adedayo Adetoye, is a software tool designed to audit the attack surface that an organisation exposes to the outside world. Guided by the principle of showing defenders "what an attacker sees," the tool reports what an organisation exposes to someone looking at it and assesses what that exposure would cost. Its assessment capabilities cover several distinct areas of externally visible infrastructure. It evaluates mail authentication, delegation, and DNSSEC configuration, examines certificate issuance policy, and identifies hostnames published in Certificate Transparency logs. In addition, it checks for subdomain takeover risks and determines which providers and jurisdictions the organisation's infrastructure resolves into, giving users a clearer picture of where their systems depend on third parties and which legal or geographic boundaries their infrastructure crosses. The software is relevant to the security auditing and attack surface management category, where it can be used for use cases such as external reconnaissance-style assessments of an organisation's own footprint, review of email security posture, verification of DNS security practices, discovery of forgotten or vulnerable subdomains, and analysis of hosting and provider dependencies. By consolidating these checks into a single tool, vantage supports security professionals, administrators, and auditors who need to understand and quantify the external exposure of an organisation before an adversary can take advantage of it. The current version of vantage is 1.2.0, and the catalog records a total of two versions of the software, indicating an active development history with a prior release preceding the present one.
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