This product has charges associated with the pre-built security hardening and recurring maintenance. Deploy a Rocky Linux 10 virtual machine with 300+ security controls already applied. Start secure. Stay secure. Save weeks of work.
This Rocky Linux 10 image is a hardened virtual machine configured with over 300 security controls designed to protect cloud-based workloads from the start. Ideal for companies operating in regulated or sensitive environments, this image gives teams a secure and production-ready foundation out of the box.
Our hardened images are built using proprietary internal pipelines that automate and validate the implementation of critical security controls. Each control is carefully selected to reduce attack surface, enforce secure defaults, and help teams meet internal or external compliance expectations. No tools are pre-installed. The image is clean, consistent, and easy to integrate into any environment.
Use cases include deploying workloads in healthcare, finance, government, SaaS platforms, or any application where security is a priority. Default cloud OS images offer little to no security by default. Our hardened images save engineering teams weeks of effort, reduce risk from misconfiguration, and accelerate your ability to launch in secure environments. We are a US-based company with over four years of operation, trusted by enterprises and government agencies. All engineering and support work is performed by US-based employees.
Highlights
Over 300 security controls are pre-applied to the base image to reduce vulnerabilities, enforce strong defaults, and simplify compliance. This saves teams weeks of manual effort and ensures consistency across deployments.
Every image is built through our internal security pipeline and validated for integrity and reliability. You can deploy in minutes with confidence that your base operating system is secure and ready for production use.
Backed by billions of compute hours and trusted by Fortune 500 and government teams. Our hardened images are the secure foundation for mission-critical workloads in regulated environments.
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Pricing is based on actual usage, with charges varying according to how much you consume. Subscriptions have no end date and may be canceled any time. Alternatively, you can pay upfront for a contract, which typically covers your anticipated usage for the contract duration. Any usage beyond contract will incur additional usage-based costs.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
If you are an AWS Free Tier customer with a free plan, you are eligible to subscribe to this offer. You can use free credits to cover the cost of eligible AWS infrastructure. See AWS Free Tier for more details. If you created an AWS account before July 15th, 2025, and qualify for the Legacy AWS Free Tier, Amazon EC2 charges for Micro instances are free for up to 750 hours per month. See Legacy AWS Free Tier for more details.
You pay by the hour for this hardened Rocky Linux image, billed per running instance. Each dimension maps to a specific AWS EC2 instance type, so your rate follows the instance you launch. Smaller instances like t2.micro or t3.nano carry lower hourly rates, while large multi-processor and metal instances carry higher rates. Pricing scales with the compute size you choose, not with tiers or add-ons. You can select x86_64 or ARM64/Graviton instance families to match your workload. AWS infrastructure charges apply separately from this software fee. There is no upfront commitment; you pay only for hours used.
Top-of-mind questions for buyers
What does one hourly unit cover, and what does the software fee include?
Each unit is one running EC2 instance of the matched type, billed per hour. The fee covers the hardened Rocky Linux image, patched monthly, with a PCI-focused configuration baseline and a per-image evidence pack where published. You also get US-based product support for image and hardening questions.
Am I charged when an instance is stopped or powered off?
The software fee meters running instance-hours. A stopped or powered-off instance does not accrue this hourly software charge. Underlying AWS storage or other infrastructure fees may still apply while an instance is stopped, but those bill separately from this software fee.
Do I pay a different rate for ARM64/Graviton instances versus x86_64?
Your rate follows the specific EC2 instance type you launch, so each instance dimension carries its own hourly price. x86_64 and ARM64/Graviton families are listed as separate instance types. Confirm architecture availability on the specific listing, since coverage varies by operating system.
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Refunds are not available. Billing will be assessed per the standard billing terms of the applicable cloud service provider.
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An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
Security patches and package updates (August 2026)
Additional details
Usage instructions
Connect over SSH using the key pair selected at launch. The default user is shown above. See the listing's usage instructions for full details.
Support is part of what you get with a Citadel image, and it comes from a US-based team that works on these builds every day. Email support@citadelpci.com with anything - choosing the right image, how the hardening behaves, patching and releases, evidence for a PCI DSS review, or a question you are not sure who else to ask. We read every message, and we would much rather you ask than guess. More about how we work with customers:
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
This product has charges associated with the pre-configured security setup, including continuous image maintenance. Deploy a security-hardened Rocky Linux 10 virtual machine configured with over 200 controls out of the box, optimized for secure workloads.
This product has charges associated with it for providing seller premium support. The Rocky Linux 10 instance is a secure operating system designed for reliability and compliance in production environments. Benefit from a fully maintained image with regular security patches and hotfixes, along with limited premium OS support to assist with troubleshooting, optimization, and compliance guidance. This makes it an ideal choice for companies that need a trusted, production-ready OS backed by expert assistance.
This product has charges associated with the pre-configured security setup, including Docker installation and continuous image maintenance. Deploy a security-hardened Rocky Linux 10 virtual machine configured with over 200 controls out of the box, optimized for secure workloads.
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