Shocking Cloud Costs: How AWS Charged My Customer $800,000 for Egress Data Transfer in a Single Month

A shocking tale of cloud costs and the dirty secret of cloud vendors to maintain customer loyalty

Usman Aslam
4 min readNov 24, 2023
Image Credit: Yuri A on Shutterstock

In today’s tech-centric world, the decision to migrate to the cloud can be a game-changer for businesses.

This story unravels a shocking and unexpected turn of events in the cloud journey of one of my customers, a company in the Oil and Gas industry.

Little did they know that their choice to move 13 petabytes of data to an AWS region in Stockholm, Sweden, would lead to unforeseen egress data transfer charges that would send their AWS bill skyrocketing.

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Let’s cut to the chase and dive right in!

A Bold Move to the Cloud

Migrating to the cloud is a monumental step for any business.

For my customer in the Oil and Gas sector, this move promised more scalability, flexibility, and accessibility to their data.

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Usman Aslam
Usman Aslam

Written by Usman Aslam

Ex-Amazonian, Sr. Solutions Architect at AWS, 12x AWS Certified. ❤️ Tech, Cloud, Programming, Data Science, AI/ML, Software Development, and DevOps. Join me 🤝

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