Companies use Cloudflare to enhance security by protecting websites against cyberattacks like DDoS and data breaches, while also improving performance using a global network of data centers to deliver content faster. This dual focus ensures that businesses maintain high reliability and keep their users safe while accessing their services.</think>Companies use Cloudflare to enhance website security by protecting against cyberattacks like DDoS and data breaches, while simultaneously improving performance using a global network to deliver content faster and more reliably. This combination allows businesses to provide better user experiences and stronger infrastructure protection from a single platform.