Geoff Brown, who served as the city's CISO from 2016 through 2021, is now a vice president at cybersecurity firm Recorded Future.

After successful implementation internally, New York City Cyber Command wants to overhaul network security across a city government with more than 100 agencies.

Keeping the city government running even when no one's in the office has been a vindication, leaders of New York City's cybersecurity agency said.

The move would codify cybersecurity as one of the services the city government provides to its nearly 9 million residents.

The new group, led by the city's chief information security officer, will partner with the IT department to set policy and standards for cybersecurity citywide.