The U.S. will face a cyber attack in the near future that will cause major disruption in the economy, says outgoing Homeland Security Department chief Janet Napolitano.

“Our country will, at some point, face a major cyber-event that will have a serious effect on our lives, our economy, and the everyday functioning of our society,” says Napolitano in remarks prepared for her farewell speech today, Bloomberg Businessweek reports.

In her prepared remarks, she notes the accomplishments and lessons learned during her time in the department, and she also laid out recommendations for her (as of yet unnamed) successor, including the need to confront the “evolving threat of terrorism, natural disasters and the need for strong border security and immigration enforcement.”

She also called on the next agency leader to do more to protect the U.S. from cyber attacks that have plagued public and private institutions throughout her tenure, the article reports.

“While we have build systems, protections and a framework to identify attacks and intrusions, share information with the private sector and across government, and develop plans and capabilities to mitigate the damage, more must be done, and quickly,” Napolitano says.