The goal of security management is risk management. Migrating your business to the cloud does not reduce security risks or transfer all security responsibility to the cloud provider.
Cloud security uses a shared responsibility model. The cloud provider is responsible for securing the cloud platform itself. The provider also offers security capabilities and products to its customers. Customers are responsible for using these services to build a security system that protects their applications and business.
As cloud migration accelerates and the cost of network attacks decreases, security development often lags behind business growth. Therefore, plan and design your security system at the start of your cloud migration. Do not wait to build security until after your business is already running.