CDI's SENTINEL, which stands for Security and Network Training Initiative and National Education Laboratory, is a national initiative to educate technical personnel in cyberterrorism response and prevention. Personnel can come from public safety, law enforcement, state and local government, public utilities, colleges and universities, and health care providers. Depending on classroom space, consideration will also be given to other individuals working within agencies and organizations considered as a part of our nation's critical infrastructures.

Using a mobile computer lab, SENTINEL provides free cybersecurity training directly to centralized rural and metropolitan areas of critical need across the country. The training focuses on enhancing the prevention, preparedness, and response capabilities of local, state, tribal, and rural public safety jurisdictions.

Training combines lectures, classroom instruction, course materials, and real-world experience using hands-on lab simulations. SENTINEL is designed for all experience levels of users and technicians in the state and local public safety sector.

Two cybersecurity training classes are provided through the CDI SENTINEL program. One class emphasizes prevention, deterrence, and recovery, while the other primarily deals with incident handling and response. Both classes have been certified by the U.S. Department of Homeland Security. Cybersecurity: Prevention, Deterrence, and Recovery is a four-and-a-half day class designed for participants with an introductory to intermediate level of experience in the security field, and provides an intensive, detailed overview of core cybersecurity methodology and concepts.  Cybersecurity: Incident Handling and Response is a four-and-a-half day class for participants who have more experience working with secure networks, and provides more in-depth instruction on countering and responding to significant cyberattacks. 

All classes are free of charge and focus on enhancing the prevention, preparedness, and response capabilities of technical personnel nationwide. Course materials are provided in class. By using the resources provided during the classes, those trained will be able to share their knowledge with the technical staff in their own jurisdictions.