Multi-State Information Sharing & Analysis Center (MS-ISAC)
https://www.cisecurity.org/ms-isac/

National Institute of Standards and Technology (NIST), Computer Security Division
https://csrc.nist.gov/publications/sp

New York State Office of Information Technology Services
https://its.ny.gov/ciso/local-government

United States Computer Emergency Readiness Team (US-CERT)
https://www.us-cert.gov/