
International Telecom Company
An international telecom company manages a complex network structure and countless endpoints across continents, resulting from years of mergers, expansions, and infrastructure upgrades.
Replacing existing DNS servers or reconfiguring the entire network is not only daunting but also nearly impossible without astronomical costs and severe operational disruptions.
Illuminate the Darkness Behind VPNs
A global consulting firm has a highly mobile workforce spread across multiple continents. Employees regularly connect to the corporate network via virtual private network (VPN) clients to ensure the confidentiality of sensitive projects.
However, this approach presents a significant challenge: When employees go behind a VPN, traditional DNS monitoring solutions often fail to identify the specific user or device generating the suspicious DNS queries.

Securing Network Safety in Healthcare
A large healthcare provider operates an extensive network spanning hospitals, clinics, and specialized care centers. Within this comprehensive ecosystem, countless IoT (Internet of Things) and OT (Operational Technology) devices—such as infusion pumps, imaging systems, and HVAC (heating, ventilation, and air conditioning) controls—play a critical role in both patient care and facility management.
However, because these same devices often run on legacy systems that are difficult to patch or update, they leave the organization vulnerable to cyber threats.
Strengthen Compliance and Security in the Financial Sector with DNSSight
A large financial institution falling under the scope of both PCI DSS (Payment Card Industry Data Security Standard) and GDPR (General Data Protection Regulation) faces increasing scrutiny regarding data protection and security practices. In addition to these regulations, newer directives such as M-21-31 emphasize the importance of retaining DNS logs for a year or longer to strengthen incident response and support forensic analysis processes.
Empowering Distributed Retail Networks with Centralized DNS Control
A large retail chain with dozens, even hundreds, of physical stores spread across multiple regions faces a growing challenge: maintaining consistent network security standards across this dispersed and diverse structure. Each store typically has its own network infrastructure—consisting of routers, POS terminals, and IoT sensors—creating a complex network of devices and logs that is difficult to monitor centrally.