Reduce attack surfaces with DNS
In this video, learn how to reduce your attack surface with BlueCat DNS Edge by setting client-level policies and locking down single-use devices.
Key takeawaysThis key takeaway was generated through LLMs crawling the page and coming up with an overview of the content.The article describes how BlueCat DNS Edge helps organizations reduce attack surface by enforcing least-privilege DNS security policies at the client level to block malicious payloads and viruses that often begin with DNS connections. It explains that DNS Edge can restrict single-use or connected devices—such as security cameras and point-of-sale machines—to only the domains and assets they require, preventing unauthorized access to sensitive data. The demonstrated outcome is improved network protection through client-level DNS controls that limit both user-initiated and device-initiated threats.
How does DNS Edge reduce the attack surface caused by unwitting users downloading malicious payloads?
DNS Edge reduces that attack surface by applying client-level DNS security policies that enforce least-privilege access to domains. Because many malicious payloads and viruses are initiated via DNS connections, restricting which domains clients can resolve prevents users from reaching sites that host malware. By controlling DNS resolution per client, DNS Edge blocks unauthorized or risky DNS queries before connections are established, thereby stopping potential payload downloads and reducing successful infection vectors across the network.
In what way can DNS Edge secure single-use connected devices like security cameras and point-of-sale machines?
DNS Edge secures single-use connected devices by locking them down to only the domains and assets they truly require for operation. By creating DNS policies tailored to a device’s legitimate needs, DNS Edge prevents those devices from resolving or communicating with unauthorized domains, which reduces exposure to command-and-control servers or data exfiltration paths. This targeted restriction ensures devices cannot be exploited as pivot points to access sensitive data or other parts of the network.
What operational impact does implementing client-level DNS policies with DNS Edge have on preventing unauthorized access to sensitive data?
Implementing client-level DNS policies with DNS Edge operationally prevents unauthorized access by stopping inappropriate DNS lookups at the source, effectively enforcing least-privilege network access. This reduces the risk that compromised users or devices will connect to malicious infrastructure or unauthorized services that could lead to data breaches. The outcome is a tighter attack surface and improved network resilience, since DNS Edge blocks risky connections before they reach sensitive assets, minimizing potential lateral movement and data exposure.
Unwitting users frequently download malicious payloads and viruses. These vulnerabilities are often initiated from a DNS connection. Organizations adhering to least privilege strategies can apply policies to reduce their attack surface through DNS security policies set by BlueCat DNS Edge at the client level. DNS Edge also locks down single-use connected devices like security cameras and point-of-sale machines by restricting them only to the domains and assets they truly require. In both cases, DNS Edge protects the network by preventing unauthorized users or devices from accessing sensitive data.
This video demonstrates how you can reduce your attack surface with DNS Edge.
