SB 2429 expands confidentiality protections for government-held information used to prevent, detect, respond to, or investigate acts of terrorism, related criminal activity, or hostile acts by foreign adversaries of the United States. It amends multiple sections of the Government Code, ensuring that details on emergency response staffing, risk assessments, encryption codes, and critical infrastructure vulnerabilities remain confidential. Additionally, it strengthens protections for information shared with federal agencies, particularly when confidentiality is required for federal funding or participation in state-federal information-sharing agreements.