Here is an example involving physical protective measures that occurred in the energy sector.

In April 2013, a sabotage incident damaged 17 transformers transmitting power to Silicon Valley. As a result of this incident, the Department of Energy (DOE) initiated and led a series of briefings in conjunction with DHS across 10 states to enhance physical security of electric substations. Additionally, FBI partnered with DOE to strengthen physical security at facilities that use radiological material. In fiscal year 2014, law enforcement and energy communities joined together to install security enhancements at 96 facilities, train 396 personnel, and conduct six tabletop exercises.

This example illustrates several critical tasks, including:

• Protecting critical lifeline functions, including energy
• Identifying necessary physical protections, countermeasures, and policies through a risk assessment
• Developing and implementing risk-based physical security measures, countermeasures, policies, and procedures
• Implementing security training for workers