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Here are the top risks on Goldman Sachs CEO David Solomon's radar

Julia La Roche

When you're the head of a top Wall Street bank, there are a lot of risks on your radar, including risks to your business as well as risks to your clients who are driving the global economy.

"Cyber is a risk that I think is something we should all be focused on," Goldman Sachs (GS) CEO David Solomon told Yahoo Finance. “I know that all the CEOs of the large financial institutions are focused on this and, in fact, I was asked some time in the last year what was the No. 1 risk that I was focused on or worried about, and I highlighted cyber.”

This week, Solomon and former Legendary Entertainment CEO Thomas Tull, now the founder of investment firm Tulco, returned to their alma mater, Hamilton College, to talk to students about technology, innovation, and entrepreneurship.

Both view cybersecurity as a real problem that poses a threat to critical infrastructure and the economy, from transportation to financial services.

"I think more coordination between companies and government on this issues is super important," Solomon said.

Tull, whose firm focuses on applying artificial intelligence and machine learning in its investment thesis, wants to see the government write a cyber doctrine.

"We have rules of engagement that our friends and adversaries know how we are going to act whether that's in naval engagements. You make 'If, then' statements. 'If you do this, you can't expect us to do that.' We haven't done that yet with a cyber doctrine to let people know, 'Hey If you attack us in this manner we are going to respond in kind.' I think that's an important step,” Tull said during a panel discussion.

Cybersecurity isn't the only risk on Solomon's radar. He's also focused on the changing market structure.

David Solomon, co-president and co-chief operating officer of Goldman Sachs & Co., speaks during the Milken Institute Global Conference in Beverly Hills, California, U.S., on Monday, May 1, 2017. The conference is a unique setting that convenes individuals with the capital, power and influence to move the world forward meet face-to-face with those whose expertise and creativity are reinventing industry, philanthropy and media. Photographer: Patrick T. Fallon/Bloomberg via Getty Images
David Solomon, CEO of Goldman Sachs & Co. (Patrick T. Fallon/Bloomberg via Getty Images)

"The fact that we've seen a significant change in market structure over the last decade and it really hasn't been tested under stress because we haven't really been through a stressful period," he said. "We had regulatory change, we've had a movement to much more indexed product, more ETF product, we've got more systematic trading and more stuff running through machines. And the whole combination of this is relatively untested under stress, and so how liquidity works in a period of stress is something we spend a lot of time thinking about."

The other worry is government debt.

"I think one of the things that's interesting right now is that the increase in government debt around the world is something that I think could present, in certain markets or in certain times, risks that could have secondary and tertiary effects."

All in all, though, Solomon says the probability for a recession in 2019 is "very low."

Julia La Roche is a finance reporter at Yahoo Finance. Follow her on Twitter.