Exposentry guards what is visible, before it becomes vulnerable.
Exposentry helps organizations understand what attackers can see, which vulnerabilities come with it, and how to demonstrably stay in control of their digital attack surface.
The name Exposentry is built from two core concepts: exposure and sentry.
refers to everything that is visible about an organization from the outside: domains, subdomains, ports, certificates, public systems and vulnerabilities. This is the digital surface attackers see first; in cybersecurity it is called the external attack surface.
means guard or watchman. A sentry stays on the lookout, observes continuously, flags anomalies and warns before danger causes damage.
Together, Exposentry stands for: the digital sentry that guards what is visible and vulnerable from the outside. Exposure, monitored by a sentry.
Exposentry was born from a simple conviction: you can only protect what you make visible. Organizations have ever more digital entry points, from domains and subdomains to cloud environments, certificates and public systems. Exposentry continuously guards this visible exterior and translates technical vulnerabilities into clear, demonstrable security insights. This way Exposentry helps organizations not only become safer, but also show clients, auditors and supply chains that they take their digital responsibility seriously.
The brand stands for visibility, vigilance, evidence and trust.
The party that manages your environment should not be the one judging whether that environment is secure. That is why Exposentry always reports directly to the client, never through the party that manages or built the environment.
That also applies to ourselves. Exposentry is a Hasecon service, and Hasecon also provides implementation, maintenance and development services around OpenKAT, such as on-premise installations and custom modules. If Hasecon does such work for the same client, the report says so explicitly. And Hasecon does not issue security reports on scanned environments outside of Exposentry: there is only one reporting channel, straight to you.
This separation of duties is laid down in article 6 of our terms and conditions.
Exposentry is built by Edward Hasekamp, founder of Hasecon and core maintainer of the open-source OpenKAT project the service runs on. The methodology is not just transparent and verifiable, it is co-maintained by the person running your scans.