Secure64 LineGuard delivers advanced DNS filtering and threat protection specifically engineered to meet the mission-critical demands of federal agencies, defense networks, state and local governments, law enforcement, utilities, and critical infrastructure operators. As nation-state threats, ransomware gangs, and cybercriminals increasingly target public sector networks, Secure64 LineGuard provides the DNS-layer protection that stops attacks at their source.
Government networks are continuously targeted by advanced persistent threats (APTs), ransomware, espionage activities, and data exfiltration campaigns, posing significant risks to national security and critical operations. One of the more insidious tactics used in these cyberattacks involves DNS-layer attacks, which are designed to evade traditional firewall defenses and establish covert communication channels, often used by nation-state actors.
Public sector organizations are particularly vulnerable, as they oversee sensitive domains such as national security, law enforcement, citizen information, and the infrastructure that underpins societal functions. To safeguard these critical assets, government agencies must comply with rigorous standards and mandates, such as FISMA, CISA BOD 22-01, NIST 800-53, CJIS, HIPAA, and GDPR, which require proactive and robust DNS-layer security measures. Secure64 LineGuard delivers on this imperative by neutralizing threats at the DNS level before they can infiltrate systems, ensuring the protection of both essential public services and the broader national interest.
LineGuard by Secure64 delivers comprehensive protection by blocking a wide range of threats at the DNS layer, including ransomware, phishing, malware, DNS tunneling, command-and-control (C2) communications, and data exfiltration attempts. This proactive security approach safeguards the most critical assets across public sector environments, ensuring the integrity and availability of classified networks, law enforcement records, public utilities, financial systems, and essential citizen services. By neutralizing threats before they can enter or communicate within a network, LineGuard helps government entities maintain operational continuity and uphold public trust.
LineGuard enables government agencies and enterprises to block access to AI platforms like ChatGPT and Deepseek at the DNS layer, preventing users from unintentionally exposing sensitive information to large language models (LLMs). By stopping DNS resolution for these domains, LineGuard ensures that no data is transmitted, whether through casual use or malicious intent.
This is especially critical for platforms like Deepseek, which route data through servers in China, posing serious national security and data sovereignty risks. With LineGuard, organizations can enforce strict AI usage policies and protect sensitive systems from unauthorized data leakage.
Consistent DNS protection with LineGuard by Secure64 extends across all operational environments, ensuring security beyond the traditional network perimeter.
This includes coverage for field offices, remote workers, military bases, public safety vehicles, and emergency responders, as well as cloud and hybrid workloads. By delivering uniform threat prevention regardless of location or infrastructure, LineGuard ensures that critical services and personnel remain protected against DNS-based threats wherever they operate.
Consistent DNS protection extends to:
LineGuard offers EDNS and source IP-based filtering to enable precise policy enforcement across complex agency networks, ensuring that access controls and threat protections align with organizational structure and mission needs. Its multi-tenant architecture allows centralized management of multiple agencies or divisions within a single deployment, providing scalability and administrative efficiency without compromising security segmentation.
Government agencies face the highest stakes in cybersecurity. Secure64 LineGuard helps public sector organizations:
Contact Secure64 to schedule a government-specific consultation and learn how LineGuard protects national security at the DNS layer.
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