Take a deep breath, and imagine a doomsday scenario on Wall Street: a hacktivist group coordinates a large-scale, three-day attack on the capital markets meant to disrupt trading and confidence in the U.S. markets.
That's what cybersecurity firm SIFMA tried to simulate in a Wednesday experiment—where they found that banks might be limited during a hacking by laws that restrict information sharing.
"It's an inevitable instance that we're going to have cyberattacks," said Kenneth Bentsen, SIFMA's CEO said Wednesday on CNBC's "Closing Bell." "We have to work not just on prevention, but on response and recovery. And that's what these exercises are all about."