In fact, failure to do so is a classic case of being penny wise and pound foolish. 

The evidence includes the following: 

On November 16, following two days of cybersecurity scenario testing by more than 250 organizations, Manny Cancel, Senior Vice President of the North American Electric Reliability Corporation (NERC) said, "The threat landscape in which we are operating is unprecedented – we are facing challenges that are increasingly difficult to detect and protect against."

NERC added that evolving cyber threats to the grid are "guided by geopolitical events, new vulnerabilities, changes in technologies, and increasingly bold cyber criminals and hackers."