A potential government shutdown in September 2025 could result in two-thirds of the personnel at the Cybersecurity and Infrastructure Security Agency (CISA) being sent home, which raises concerns about national security and cybersecurity readiness. The agency, vital for protecting the nation's critical infrastructure, may face significant operational challenges if a resolution is not reached.

The lapse of a critical cyber threat information-sharing law, established under the Cybersecurity Information Sharing Act (CISA) of 2015, has raised concerns amid the ongoing government shutdown. This law was designed to facilitate the sharing of threat intelligence between the government and private sector, and its expiration could hinder national cybersecurity efforts at a time of increasing cyber threats.