Encryption is a fundamental aspect of cloud web security. It scrambles data, making it unreadable to unauthorized parties. This ensures the confidentiality of sensitive information, protecting it from potential threats.

Firewalls play a crucial role in blocking malicious traffic. They act as a barrier between the internal network and the external world, preventing cyber - attacks. Intrusion detection systems monitor network activity for any signs of intrusion, providing real - time alerts.

User authentication and access control are vital. Multi - factor authentication adds an extra layer of security, ensuring that only authorized users can access cloud resources. This helps prevent unauthorized access and data breaches.