Air Gapped Computer Cost: What Is It & How Do You Secure One?

Air Gapped Computer
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Within the dynamic and constantly expanding realm of cybersecurity, air-gapped computers serve as a robust and impenetrable stronghold against various forms of digital vulnerabilities and hazards. These self-contained systems, which are not connected to external networks, offer an exceptional degree of security. This article explores the best air-gapped computers and their cost now available on the market.

Air-Gapped Computer 

The implementation of an air gap is a security precaution that entails the isolation of a computer or network, thereby impeding its ability to establish any form of external connection. Also, air gaps are employed as a protective measure to safeguard vital computer systems or data against a wide range of potential attacks, encompassing malware, ransomware, keyloggers, and other dangerous activities perpetrated by unauthorized individuals.

To breach the Air Gap computer security, the hackers must physically position themselves in front of the computer, as there are no alternative methods to obtain access to the Air Gap network. 

Types Of Air-Gap

The following are the different types of air gap:

#1. Total Physical Air Gaps

An air-gap computer is defined by the physical separation of hardware and software components within a separate environment.

Also, an air gap of this nature effectively isolates a system from any other network-connected systems and may additionally impose limitations on physical accessibility.

#2. Isolated Air-Gapped Systems

These entities are physically isolated from other systems inside the identical environment, potentially even residing on the same rack, yet lack connectivity to the shared network.

#3. Logical Air Gaps Separate Systems

Rather than being physically joined, these entities link together logically within the same network. Using encryption and implementing access control using roles are two ways to put logical separation techniques into practice.

An air-gapped computer system is characterized by its lack of physical connectivity to other computers, networks, or unprotected systems. Instead, it is exclusively connected to air-gapped networks.

For example, to interact with crucial financial data while reducing the risk of malware, ransomware, or keyloggers, one might choose to set up an offline computer that does not have access to the internet.

Essentially, the absence of a direct connection to the internet or any other system with internet access is what defines an air-gapped computer. Also, a true air-gapped network is completely separate physically from any devices with internet access. As a result, only USB-compatible portable storage devices can transmit data. A true air-gap network is completely physically separate from any internet-connected devices.

Best Air-Gapped Computer 

The following list comprises a selection of highly regarded air-gapped computers:

#1. Purism Librem Series

The organization’s commitment to maintaining security and protecting privacy has earned them widespread recognition. The laptops come with hardware features that let users turn off the wifi, networking, camera, and microphone. This feature enhances user control over the communication channels of the device. Although Purism’s dedication to open-source software and privacy is praiseworthy, users should assess their unique hardware and performance needs to ascertain compatibility.

#2. Custom Air-Gapped Solutions

Certain individuals who prioritize security choose to utilize custom air-gapped configurations by repurposing older computer systems and eliminating superfluous hardware components. This methodology enables a customized and streamlined setup, thereby mitigating potential vulnerabilities. Also, the implementation of meticulous planning and consistent updates is important to uphold security measures.

#3. Ruggedized Industrial Computers

Computers specifically engineered for use in challenging industrial settings frequently exhibit durable construction and possess the capability to accommodate air-gapped configurations. Although ruggedized computers provide enhanced durability, they tend to have a larger physical footprint and higher price points compared to consumer-grade equivalents.

#4. Secure Boot Environments

The implementation of secure boot features, such as the integration of Trusted Platform Module (TPM) technology, contributes to the bolstering of security measures in air-gapped computer systems.

In addition, the aforementioned elements serve to ensure the integrity of the boot process, hence mitigating the risk of unauthorized alterations. Also, users should ensure the compatibility of their selected operating system with secure boot functionalities. In addition, it is imperative to regularly upgrade firmware to effectively mitigate any risks.

#5. Hardware Isolation Solutions

Some air-gap designs include hardware isolation techniques, such as physically removable storage devices. Furthermore, the successful implementation of hardware isolation necessitates a thorough examination of user workflows and data transmission procedures. Ensuring proper training is crucial to mitigating inadvertent violations.

Furthermore, selecting the best air-gapped computer requires a careful assessment of user preferences, security features, and practical considerations.

Where to Buy an Air-Gapped Computer

Due to their specific characteristics, air-gapped computers may not be easily accessible through regular retail channels. There are several potential locations where one may encounter air-gapped systems. These are:

  • Direct from Manufacturers
  • Specialized Security Providers
  • Custom Computer Builders
  • Industrial Computer Suppliers
  • Auction Platforms
  • Government or Defense Contractors
  • Consult with Security Experts

In addition, it is imperative to engage in a comprehensive investigation regarding any seller or individual under consideration for purchase to ascertain their validity and commitment to upholding security requirements.

Moreover, it is imperative to adhere to established protocols for ensuring security and successfully isolating an air-gapped system from external networks while establishing such a system.

Air-Gapped Computer Cost

The cost of an air-gapped computer can exhibit considerable variation, contingent upon elements such as the brand, specifications, and whether it is a purpose-built system or a customized solution. The following is a set of general ranges:

#1. Commercially Available Air-Gapped Computers

Products made by businesses like Purism have a price range that starts at a few hundred dollars and goes up to more than a thousand dollars. Additionally, the specific air-gap computer price depends on the features and security measures that come with the device.

#2. Custom-Built Air-Gapped Systems

The cost of developing a tailored solution through the utilization of pre-existing hardware or the assembly of components can vary significantly, ranging from a few hundred to several thousand dollars, contingent upon the specific hardware selected.

#3. Industrial-Grade Computers

Computers that are designed to withstand harsh conditions or are specifically intended for use in isolated situations, such as air-gapped settings, can vary in price from a few hundred to several thousand dollars. The air-gap computer cost is contingent upon the degree of durability and security features offered by the computer.

Can Air-Gapped Computers Be Hacked?

In a broad sense, malware possesses the capability to attack diverse hardware configurations to extract confidential data from air-gap systems through the utilization of “air-gap covert channels. Also, “these hardware configurations employ various media types to establish a connection across the air gap, encompassing acoustic, light, seismic, magnetic, thermal, and radio-frequency channels.

Can Air-Gapped Computers To Internet? 

The absence of direct connectivity to the internet or any other internet-enabled device is the primary characteristic of an air-gap computer. A true air-gap network is physically separate from all devices with internet access. As a result, only external storage devices like USB may transport data.

What Is The Purpose Of An Air Gap?

The installation of a device establishes a physical barrier that effectively separates the water supply from any possibly contaminated water present in a sink or other plumbing fixture.to implement an air gap,

It is mandated by plumbing regulations for specific plumbing devices, such as dishwashers, to mitigate the risk of backflow, which could result in contamination of the clean water supply.

What Is the Air Gap In Cyber Attacks?

The implementation of an air gap is a security precaution that entails the isolation of a computer or network, thereby impeding its ability to establish any form of external connection. An air-gapped computer refers to a computing system that is physically isolated and cannot establish wireless or physical connections with other computers or network devices.

Who Uses Air-Gapped Computers?

Air gap backups offer significant advantages for businesses of all scales, as they effectively safeguard data against potential threats like network intrusions or system failures, thereby preventing its destruction, unauthorized access, or manipulation. Air gap backups are stored at a physically safe location situated away from the business premises, such as within a highly secure server facility.

References 

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