The Department of Defense (DOD) and our nation’s defense industrial base (DIB)—which includes entities outside the federal government that provide goods or services critical to meeting U.S. military requirements—are dependent on information systems to carry out their operations. These systems continue to be the target of cyber attacks, as DOD has experienced over 12,000 cyber incidents since 2015 (see figure).To combat these incidents, DOD has established two processes for managing cyber incidents—one for all incidents and one for critical incidents. However, DOD has not fully implemented either of these processes.
Despite the reduction in the number of incidents due to DOD efforts, weaknesses in reporting these incidents remain. For example, DOD’s system for reporting all incidents often contained incomplete information and DOD could not always demonstrate that they had notified appropriate leadership of relevant critical incidents. The weaknesses in the implementation of the two processes are due to DOD not assigning an organization responsible for ensuring proper incident reporting and compliance with guidance, among other reasons. Until DOD assigns such responsibility, DOD does not have assurance that its leadership has an accurate picture of the department’s cybersecurity posture.
In addition, DOD has not yet decided whether DIB cyber incidents detected by cybersecurity service providers should be shared with all relevant stakeholders, according to officials. DOD guidance states that to protect the interests of national security, cyber incidents must be coordinated among and across DOD organizations and outside sources, such as DIB partners. Until DOD examines whether this information should be shared with all relevant parties, there could be lost opportunities to identify system threats and improve system weaknesses.
DOD has established a process for determining whether to notify individuals of a breach of their personally identifiable information (PII). This process includes conducting a risk assessment that considers three factors—the nature and sensitivity of the PII, likelihood of access to and use of the PII, and the type of the breach. However, DOD has not consistently documented the notifications of affected individuals, because officials said notifications are often made verbally or by email and no record is retained. Without documenting the notification, DOD cannot verify that people were informed about the breach.
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