CACI Achieves Enterprise-Wide Certification for IT Infrastructure and Security Policies and Practices

Enterprise-Wide ISO 27001 Credential Validates CACI’s IT Infrastructure and Security

CACI International Inc (NYSE: CACI) announced today that it has been certified for the International Organization for Standardization (ISO) 27001 credential for information security policies and practices. The enterprise-wide certification is independent verification that CACI’s internal corporate information technology (IT) infrastructure and information security policies and practices adhere to the best practices defined in the ISO standard. This is the second enterprise-wide ISO credential the company has received, having been certified for the ISO 9001:2015 quality management credential in May. CACI’s ongoing success in meeting industry-recognized standards reflects the company’s commitment to delivering excellence and high quality in all its solutions and services.

The ISO 27001 certification is earned on the basis of an external audit. Auditors examined every aspect of CACI’s internal information security policies and practices – those internal processes developed to ensure corporate information technology infrastructure and policies are secure and compliant. The certification defines requirements for information security management systems and serves as an industry-recognized measurement of effective policies and practices.

Receiving the ISO 27001 certification is key to CACI’s strategy for achieving compliance with the National Institute for Standards and Technology (NIST) Special Publication 800-171, the federal government’s set of requirements to safeguard covered defense information and cyber incident reporting. The NIST 800-171 is currently required for all Department of Defense contracts and is anticipated to become a government-wide requirement by 2017.

CACI Chief Operating Officer and President of U.S. Operations John Mengucci said, “The ISO 27001 certification, along with the ISO 9001:2015 certification announced in May, is a reflection of CACI’s commitment to ensuring our internal IT infrastructure and policies and practices meet the highest industry and government standards.”

Ken Asbury, CACI’s President and Chief Executive Officer, said, “This enterprise-wide certification, with its increased emphasis on information security policies and practices, is a testament to the excellence that we pursue at CACI as our constant goal. We are pleased at the recognition the International Organization for Standardization has given us, as it acknowledges CACI’s focus on our internal security.”

CACI provides information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. A Fortune magazine World’s Most Admired Company in the IT Services industry, CACI is a member of the Fortune 1000 Largest Companies, the Russell 2000 Index, and the S&P SmallCap600 Index. CACI’s sustained commitment to ethics and integrity defines its corporate culture and drives its success. With approximately 20,000 employees worldwide, CACI provides dynamic career opportunities for military veterans and industry professionals to support the nation’s most critical missions. Join us! www.caci.com.

There are statements made herein which do not address historical facts, and therefore could be interpreted to be forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Such statements are subject to factors that could cause actual results to differ materially from anticipated results. The factors that could cause actual results to differ materially from those anticipated include, but are not limited to, the risk factors set forth in CACI’s Annual Report on Form 10-K for the fiscal year ended June 30, 2016, and other such filings that CACI makes with the Securities and Exchange Commission from time to time. Any forward-looking statements should not be unduly relied upon and only speak as of the date hereof.

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CACI International IncCorporate Communications and Media:Jody Brown, Executive Vice President, Public [e-mail] Relations:David Dragics, Senior Vice President, Investor [e-mail]