U.S. critical infrastructure protection

U.S. critical infrastructure protection refers to the policies, strategies, and practices aimed at safeguarding the nation's essential systems and assets that are vital for security, economy, public health, and safety. These infrastructures are usually categorized into 16 sectors, which include: 1. **Chemical**: Facilities that produce, store, and distribute chemicals. 2. **Commercial Facilities**: Buildings and venues that host large gatherings, like malls and stadiums. 3. **Communications**: Telecommunications networks and services.