Cloud networks are virtual but follow the same security principles as traditional on premise networks. Good network design reduces exposure and prevents attackers from reaching important resources.

Key Concepts:

• Virtual Private Clouds: A virtual private cloud is an isolated segment of the provider network. Organizations place sensitive resources inside this private area to limit external access. This separation helps protect critical systems.
• Security Groups and Firewall Rules: Security groups act as virtual firewalls. They decide which traffic is allowed to reach servers or containers. Strong inbound and outbound rules block unauthorized traffic and reduce attack opportunities.
• Network Segmentation: Segmentation divides networks into smaller zones. If an attacker enters one zone they cannot automatically enter others. This limits the impact of a compromise and slows lateral movement.
• Encrypted Traffic: Encryption protects data moving between cloud resources and users. Even if traffic is intercepted the data cannot be read. Encrypted communication is essential for preventing data theft.