Electricity Today T&D Magazine

Theft, destruction, disablement, vandalism, and terrorism: any of the aforementioned words receive the attention of organizations with susceptible critical assets. Physical security and its costs, benefits, and risks are becoming more important as each day passes. Important, not only from a safety and security point of view, but also from the perspective of its value to operations, strategy, and even the overall bottom line.
INTRUSIONS
Electric utilities want to avoid intrusions which, consequently, cause negative publicity, liabilities, and financial loss. Historically, physical security mainly described stopping intrusions such as by installing physical barriers around substations.

Now, electric utilities aim to halt intruders before they can breach protective barriers.