Cloud cost optimization articles often focus on reserved instances, storage classes, or rightsizing infrastructure. This story is about something completely different. A customer experienced a sudden and significant increase in AWS costs. There were no deployments, no infrastructure changes, and no noticeable increase in user traffic. At first glance, nothing appeared wrong. Yet costs continued

Introduction If you have been learning AWS, you have probably come across the term VPC and wondered what it actually means. AWS VPC (Virtual Private Cloud) is one of the most fundamental services in AWS — and understanding it is essential for anyone working in the cloud. In this guide, I will explain AWS VPC