Lockheed Martin [LMT] was accredited as a Commercial Service Provider (CSP) under the Department of Homeland Security’s (DHS) Enhanced Cybersecurity Services (ECS) program, the company said Friday.

This accreditation allows the department to share sensitive and classified cybersecurity threat information with Lockheed Martin “to support its efforts in defending public and private entities against cyber attacks,” the company said.

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“ECS is a voluntary information sharing program that assists U.S.-based public and private entities as they improve the protection of their systems from unauthorized access, exploitation, or data exfiltration,” the DHS website said.

DHS works with cybersecurity organizations across the federal government to gain access to a range of sensitive and classified cyber threat information that it develops into cyber threat indicators shared with CSPs under the program.

The Lockheed Martin ECS system will quarantine compromised email and block malicious DNS requests, based on the DHS-supplied cyber threat intelligence.

“ECS data forms an important pillar of the data we use to inform our Intelligence Driven Defense® methodology and operations. We’ll integrate the Department of Homeland Security’s ECS data with our customer’s cybersecurity threat protection programs to give their networks an important cyber-defense edge,” Rich Mahler, director of Lockheed Martin Commercial Markets, said in a statement.

ECS information will be included in the company’s Enhanced Threat Protection (ETP) solution, Lockheed Martin said. The ETP automatically prevents malicious network traffic using intelligence gained from years of protecting critical assets from advanced threats, the company’s website said.

Other companies currently approved to provide ECS services are AT&T [T], CenturyLink [CTL], and Verizon [VZ].