What is driving cyberattacks on U.S. water systems?

In recent weeks, at least seven U.S. states have been hit with cyberattacks that appear to be targeting critical infrastructure — like water and wastewater utilities.The FBI is investigating the attacks and has not publicly identified a culprit. However, many experts say Iranian-backed hackers are responsible.We sit down with a cybersecurity expert about what makes water systems vulnerable to attacks and what message hackers are trying to send.Guest:Nikolas Behar, cybersecurity leader and educator