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Maciej Pocwierz

Software engineer writing about cloud costs and security

Maciej Pocwierz (Maciej Poćwierz) is a software engineer with experience across several industries. He also built Scrabblecam, a tool that recognizes physical Scrabble boards from photographs.

In 2024, he published How an empty S3 bucket can make your AWS bill explode, documenting his investigation into unexpected charges caused by external requests to a private S3 bucket. A Chinese translation appears on this blog.

Elsewhere

  • Cloud Dark Forest: Exploding Cloud Bills with Just S3 Bucket Names

    By Maciej Pocwierz In Cloud-Exit 1269 words 6 min

    Maciej PocwierzCloud-ExitAWSObject Storage

    Cloud Dark Forest: Exploding Cloud Bills with Just S3 Bucket Names

    The dark forest law has emerged on public cloud: Anyone who knows your S3 object storage bucket name can explode your cloud bill. Imagine this: you create an empty, private AWS S3 storage bucket in your favorite region. What would your AWS bill look …

    The dark forest law has emerged on public cloud: Anyone who knows your S3 object storage bucket name can explode your cloud bill. Imagine this: you create an empty, private AWS S3 storage bucket in your favorite region. What would your AWS bill look …