Project Cheyenne

What Is Project Cheyenne?

Designed as a last line of defense

Today, more than ever, securely backing up your information / data / files is critical to maintain your business or organization. With ransomware attacks popping up daily, our team wanted to create an elegant solution that would be resistant to ransomware attacks. The one-way strategy ensures that if your primary system was attacked or compromised, the attacker or attacking malware would not be able to manipulate your backups. Similarly, for personal use, regular people are under identity theft and ransomware attacks on a daily basis and therefore you could benefit from a secure backup strategy.

  • Securely back up Your Company's Data
    A one-way, cloud-enabled, secure backup solution for your personal or business use.
  • Ransomware-Resistant Backup Storage Solution
    The most critical dependency to recover from a ransomware attack is to have good backups. In many cases, the backup systems reside on the same networks that are compromised by ransomware. This leads to infection of the backups and in many cases, the backups become encrypted and inaccessible.
    Cheyenne provides a one-way, version-controlled backup solution that prevents infection of backups and isolation from infiltration of hackers that leverage the compromise to install persistent threats. If you suffer from an attack, “break the glass” and know you can pull back from your Cheyenne vault to get your company back online.
  • Easily Retrieve Data
    Backups exist in S3 Cloud storage which can copy backups to your on premise or cloud solution.
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Project Cheyenne Features

What Makes This Tool Unique

How It Works

Project Cheyenne Source Diagram | Step-By-Step

Project Cheyenne Source Diagram

Click To Enlarge Project Cheyenne Source Diagram

Data is deposited into one of many configured "dropoff" S3 Buckets for the vault, originating from the multitude of AWS services, on-premises servers, or even from an entirely separate cloud like Microsoft Azure, Google Cloud, etc.

The creation or alteration of files in the "dropoff" bucket results in the dispatch of an ObjectCreated event in S3, which is sent to the Ingest function to begin processing and ingest into the Vault account.

The Ingest function is triggered by the AWS S3 notification, which provides several key pieces of information such as the S3 bucket name, object key, object size, tags, and more. This is used to determine which AWS SQS queue to send the object details to. In the event of a processing failure, the event details are sent to the configured Dead Letter Queue (DLQ) via AWS SQS.

The Duplicator function (or AWS Batch processing queue for larger requests) receives an invocation from the AWS SQS queue containing the key pieces of the original S3 event, then proceeds to issue AWS S3 CopyObject commands to duplicate the new or updated file into the Vault bucket. In the event of a duplication failure, the event details are sent to the configured Dead Letter Queue (DLQ) via AWS SQS.

Please note that AWS Batch processing functionality is a future planned functionality and is currently unavailable.

AWS S3 copies the file into the Vault bucket, re-encrypting it with a Vault-specific AWS KMS Customer Managed Key to ensure security and privacy of the file's contents, protecting the file against deletion or tampering through AWS S3 Object Lock configuration and ensuring Write-Once-Read-Many (WORM) compliance of the Vault's storage. Cost is managed using configurable AWS S3 Object Lifecycle policies once the data no longer needs to be retained.


Headquartered in the St. Louis region, UNCOMN provides B2B management and technology consulting services.


UNCOMN analyzes, designs and delivers customized people, process, technology, and data solutions to solve your most complex business challenges.

  • Systems Engineering

    Build, secure, and operate technology systems through cloud, cyber, and dev-ops to achieve client business success.
  • Agile Solution Development

    Manage lean-agile project implementation to deliver integrated solutions aligning with the client’s business strategy.
  • Data Science

    Analyze and understand client business problems, developing, and providing insight to improve business decisions.
  • Business Architecture

    Apply enterprise understanding to design integrated people, process, technology, and data solutions to unlock opportunity.
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Why is it called Project Cheyenne?

Download Project Cheyenne Today

Project Cheyenne is ransomware-resistant backup storage solution. In non-engineer speak, this is a series of instructions combined with code to deploy a one-way, cloud-enabled, secure backup solution for your personal or business use. This serverless application of technology is lightweight and cost-effective.

Project Cheyenne is available for download at UNCOMN’s Open-Source page.

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