Hardened Ubuntu 24.04 has been thoroughly hardened and secured following the rigorous Security Technical Implementation Guide (STIG) guidelines. Please be aware that this product comes with associated charges for seller support, ensuring that you have access to dedicated assistance and resources when needed.
This AMI is hardened and maintained by Citadel. In order to receive support, please email support@citadelelement.com. Step into the realm of advanced security with our Hardened tier, featuring a VM image meticulously configured with over 200+ security measures to fortify your AWS deployments against cyber threats. This tier is designed for organizations that prioritize robust security without the complexity, including comprehensive technical support to navigate any challenges. Opt for Hardened to harness superior protection, streamlined for business resilience and peace of mind in an ever-evolving digital landscape.
Introducing Citadel's Ubuntu 24.04 hardened virtual machine image for AWS, setting a new standard for secure cloud configuration. Our images are meticulously preconfigured, strictly adhering to the Security Technical Implementation Guides (STIG), which are vendor-neutral guidelines developed through a collaborative, consensus-based approach. Recognized by government, business, industry, and academia, STIG standards ensure robust security and provide a solid foundation for compliance with a wide range of cybersecurity frameworks.
Designed for system and application administrators, security experts, auditors, help desk staff, and platform deployment professionals, Citadel's images are tailored for those seeking to develop, deploy, evaluate, or secure applications leveraging Linux systems on AWS. By choosing our hardened images, you significantly enhance operational efficiency while mitigating the time, cost, and risk associated with deploying your organization's AWS solutions.
As a trusted ally for businesses of all sizes, Citadel is dedicated to empowering you to establish and maintain a secure presence in the cloud. With our expertise in hardened virtual machine images for AWS, you can launch your projects with confidence, knowing that your infrastructure is built on a foundation of industry-leading best practices and top-tier security.
Highlights
Enhance security posture: Citadel's hardened images provide a robust foundation for your AWS infrastructure, ensuring that your applications and data are protected from the ground up. By leveraging industry-recognized STIG guidelines, you can significantly reduce the risk of security breaches and maintain a strong security posture.
Streamline compliance efforts: Our images are designed to help you meet a wide range of cybersecurity compliance requirements, such as HIPAA, PCI-DSS, and NIST. By starting with a STIG-compliant image, you can save time and resources that would otherwise be spent on hardening your systems to meet these standards.
Boost operational efficiency: Citadel's pre-configured images allow you to quickly deploy secure, production-ready environments on AWS. This enables your team to focus on developing and deploying applications rather than spending valuable time on security configurations, ultimately improving your organization's agility and time-to-market.
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
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.
You pay by the hour for each running instance, with no upfront commitment. Each dimension maps to a specific AWS Graviton (ARM) EC2 instance type, so the price you pay depends on the instance you launch. Larger instance sizes within a family carry higher hourly rates, scaling with vCPU and memory. The lineup spans general-purpose, compute-optimized, memory-optimized, storage-optimized, and metal (bare-metal) families, plus sizes from small to very large. Pick the instance that fits your workload; billing stops when the instance stops. The hourly charge bundles the hardened operating system image and vendor support.
Top-of-mind questions for buyers
What does one hourly unit map to, and what do I get in that rate?
One unit is one running AWS Graviton (ARM) EC2 instance, billed per hour. The hourly rate covers the hardened Ubuntu 24.04 operating system image plus vendor support. You pay separately for the underlying AWS compute and any storage through your AWS account.
Am I charged when an instance is stopped or paused?
The software charge meters running time only. When you stop an instance, the hourly software charge stops too. A stopped instance may still accrue AWS storage fees for attached volumes, but those are separate from this listing's hourly rate.
How do I move between instance types, and does the rate change automatically?
Each instance type is its own pricing dimension. Switching sizes or families means launching a different instance type, which then bills at that type's hourly rate. The change is not automatic; you select the instance when you launch it.
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Helpful?
Vendor refund policy
At Citadel, we're committed to your success. While refunds aren't available, you can terminate your instance anytime to avoid further charges. Our experts are ready to assist you in managing your service and making the most of our hardened images. By choosing Citadel, you're investing in your cloud environment's security and compliance. The value you receive will outweigh the cost. Don't hesitate to reach out with any questions - we're here to support you.
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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-built security hardening and recurring maintenance. Deploy a Ubuntu 24.04 virtual machine with 300+ security controls already applied. Start secure. Stay secure. Save weeks of work.
This is a repackaged software product wherein additional charges apply for a pre-hardened, SI Core STIG Hardened image and seller support. Ubuntu 24.04 LTS (Ubuntu 24) (ARM) offers a robust platform tailored for enterprise-level applications, combining the latest in open-source technology with long-term support. This AMI is optimized for ARM architectures, ensuring superior performance and energy efficiency. With Ubuntu 24, users can effortlessly deploy secure cloud-native applications, leverage cutting-edge development tools, and easily integrate with a wide array of services. Ideal for developers, system administrators, and organizations migrating to cloud infrastructures, Ubuntu 24.04 LTS (Ubuntu 24) (ARM) is your go-to solution for agility and performance in the cloud.
This product has charges associated with it for Citadel security hardening, ongoing image maintenance, release evidence, and US-based support. Deploy a PCI-focused Ubuntu 24.04 AMI with Citadel security hardening, maintained releases, post-hardening verification, release evidence, and US-based support.
This product has charges associated with it for Citadel security hardening, ongoing image maintenance, release evidence, and US-based support. Deploy a PCI-focused Ubuntu 24.04 AMI with Citadel security hardening, maintained releases, post-hardening verification, release evidence, and US-based support.
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