Overprovisioning in cloud computing refers to the practice of allocating more resources than necessary, leading to increased costs. When organizations fail to monitor their resource usage effectively, they may end up with unused resources that contribute to higher cloud bills.

Organizations can track cloud resource usage by implementing best practices such as regularly monitoring resource utilization, using automation tools for autoscaling, conducting capacity planning exercises, and employing cloud cost optimization tools. These strategies help identify patterns of overprovisioning and ensure resources are allocated efficiently.

Deprovisioning cloud resources involves several steps: removing access permissions, terminating the instances, securely deleting associated data, and verifying the removal of resources. This process is crucial for managing costs and ensuring that organizations do not pay for resources they no longer need.