Booz Allen Hamilton [BAH] has been awarded a potential $1 billion task order by the Department of Homeland Security for to provide cyber security tools to six federal agencies, the second award the company has received this year under a government-wide program to help protect federal networks from cyber threats.

The new task order, which has a base year and five one-year options, is for Group D of the Continuous Diagnostics and Mitigation (CDM) Dynamic and Evolving Federal Enterprise Network Defense (DEFEND) program. Group D covers CDM capabilities for the General Services Administration (GSA), Department of Health and Human Services, Department of Treasury, NASA, Social Security Administration, and the U.S. Postal Service.iStock Cyber Lock

The CDM program is managed by DHS in partnership with the GSA.

Jefferies aerospace and security analyst Sheila Kahyaoglu in a note to clients said the new task order for Booz Allen “reinforces the company’s competitive advantage in technical services. Recent awards have spanned cybersecurity and artificial intelligence, two emerging growth markets.”

Earlier this year, Booz Allen won a potential $621 million task order from DHS and GSA for CDM DEFEND Group B, which covered seven federal agencies. In the first phase of the CDM program, Booz Allen received multiple contracts beginning in 2015 to design, integrate and deploy a data-driven cyber security stack that provided 13 participating agencies with visibility into their networks.

With the Group B and D task orders, Booz Allen said its solution will secure nearly 80 percent of the .gov enterprise, including 4.1 million network addressable devices, 1.8 million users, over 19,700 sites, and 89 individual federal organizations.

Booz Allen said it is the new DHS award is largest federal task order it has ever received and second largest cyber security task order in its history.

The CDM program includes four phases, with the first phase being tools and services for understanding what’s on an agency’s network, the second phase focused on who’s on the network, the third phase focused on what is happening to the network and the final phase concerned with how best to protect networks and data. Booz Allen said the new task order extends across all four phases of the program.

“DHS has defined an elegant roadmap for 15 major CDM capabilities, ranging from network access control to privilege management to cloud security,” Rob Allegar, a Booz Allen vice president and lead for its CDM work, said in a statement.

In July, Booz Allen said it had received a potential five-year, $92 million task order from the Navy’s Space and Naval Warfare Systems Command to support the Information Assurance and Cyber Security Program Office.

The DEFEND program has a potential value of $3.4 billion. DHS and GSA previously awarded a $407 million contract to CACI International [CACI] for Group A and a $530 million contract to the U.S. federal business of Canada’s CGI Group [GIB] for Group C.