What is the difference between the corrective controls and the preventive controls in cloud security?

Corrective controls use mechanisms to reduce the effect of an attack while preventive controls do not use any mechanism.

Preventive controls do take the action when the attack occurs on the cloud system.

Preventive controls signals the corrective controls about the attack on the cloud system.

Preventive controls are used to upgrade the strength of the system while corrective are not.

Both (1) and (3).