The problem addressed in this research study is that multinational organizations that often disregard adopting cybersecurity threat awareness training in the workplace to protect their cyberinfrastructure assets cannot efficiently detect and respond to malicious advance persistent threat (APT) cyberattacks. There is a disconnect between security measure practice and the need to adopt cybersecurity to bolster security posture among organizations during security development. The result of this increased the presence of security vulnerabilities that allow malicious state actors to obtain access to cyberinfrastructure asset-sensitive information. The purpose of this study was to answer the research questions to determine the relationship between multinational organizations adopting cybersecurity and APT detection and response awareness training. The study used the protection motivation theory (PMT) and MITRE adversarial tactics, techniques, and common knowledge (MITRE ATT&CK) framework theories that guided this research work. A quantitative correlational research design methodology examined the relationship between multinational businesses adopting cybersecurity and threat awareness training. Study results showed that multinational businesses adopting cybersecurity and threat awareness training increased staff/employee security skill levels to predict malicious threats from state actors or hackers. Data was collected from the Internet open-access information. This research project used participants' MDPI Journal of Cybersecurity and Privacy dataset responses that addressed the research gap. Future research could extend this work of the study to provide a cybersecurity nexus (CSX) created by ISACA to address the growing cybersecurity skills gap. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]