State and Local Government Cybersecurity Act of 2021

State and Local Government Cybersecurity Act of 2021 This bill provides for collaboration between the Department of Homeland Security (DHS) and state, local, tribal, and territorial governments, as well as corporations, associations, and the general public, regarding cybersecurity. The bill expands DHS responsibilities through grants and cooperative agreements, including provision of assistance and education related to cyber threat indicators, proactive and defensive measures and cybersecurity technologies, cybersecurity risks and vulnerabilities, incident response and management, analysis, and warnings. The bill requires the National Cybersecurity and Communications Integration Center to coordinate with entities such as the Multi-State Information Sharing and Analysis Center to (1) conduct exercises, (2) provide operational and technical cybersecurity training, and (3) promote cybersecurity education and awareness. DHS shall establish a pilot program to deploy network sensors for the purpose of identifying and filtering malicious network traffic.