How CDR improves file security

We’ve covered CDR technology before, and even though the technology is not yet well known in the market, it is picking up to become a crucial part of cybersecurity defense strategies. Especially for small and medium sized businesses (SMBs). This articles highlights and explains some of the benefits customers can expect from CDR.

Content Disarming and Reconstruction (CDR) technology is rapidly becoming one of the most sought-after market segments in cybersecurity.  With such an expansive market and a diverse range of offerings and functionality it can be difficult to navigate the best option for your business. 

From integrated CDR solutions for enterprise customers to stand-alone products with functionality built for SMB, CDR product offerings are as diverse as the customers using them.

In this review, we will sort through the confusion of functionality to better understand the value of CDR products. Whether it’s enterprise-level protection or the addition of a valuable added layer of system support, this blog will explain how CDR can prevent malware from wreaking havoc on your secure data.

What is CDR?

The Content Disarming and Reconstruction (CDR) process for file sanitization was originally developed by the military Cyber Security Units and adapted for civilian use to protect sensitive data from malware infiltration.

CDR’s strategic value lies in its ability to protect against damage from malware attempting to enter an organization’s network through email attachments. Differing from traditional cybersecurity detection-based solutions, CDR defends against new and unfamiliar threats that traditional protective tools – antivirus, sandbox, and even EDR systems – are unable to stop.

Where CDR systems differ from traditional security methods is how it monitors incoming files; stripes them of malicious attachments and embedded dynamic content, the files are then inspected, malware removed, and threats neutralized. After the content has been disarmed, the clean and secure files are reconstructed and uploaded via the mail server to their intended recipient within seconds.

How does CDR protect you from cyber threats?

CDR technology relies on two core factors to provide optimal cyber threat protection. Through the interconnectivity of these factors, CDR solutions can significantly reduce the influx of malicious content via email attachments better than other CDR products on the market today.

1) Deep File Inspection

CDR relies upon a comprehensive deep CDR application that systematically scans and purges all components potentially inflected with malware before the user has access to the email attachment. In the process, by filtering all embedded active content, and disarms it instantaneously the chances of bringing inflected content into the system is virtually eliminated.

2) Policy management

Highly configurable policy options allow for a fine-grained policy definition of malware threats.  systems with a highly configurable set of admin permissions to provide exacting coverage to all users and access levels. With easily customizable user settings, system admins can provide the highest level of cybersecurity dictated to the specific technical requirements of each one using the company infrastructure.

How does CDR complement existing cybersecurity products?

 According to Gartner: “As malware sandbox evasion techniques improve, the use of CDR at the email gateway, as a supplement or alternative to sandboxing will increase. CDR breaks down files into their discrete components, strips away anything that doesn’t conform to that file type’s original specs or company policies, and rebuilds a clean version that continues to the intended destination. This real-time process removes zero-day malware exploits without impacting business productivity typically caused by sandbox detonation and quarantine delays.”

By preventing the inflow of new malware, SMB can rely upon off-the-shelf antivirus or firewall products to detect previous infections, while utilizing CDR to prevent future data breaches.

Related:   How organisations can establish true visibility using CASB and Zero Trust

CDR and enterprise customers?

CDR technology has become broadly accessible for enterprise customers through a diverse range of service providers and product options. As a next-level cybersecurity technology with its foundations in military technology, CDR service offerings are directed towards enterprise customers with the resources and security requirements to demand the additional security barrier. 

Between the initial costs of development and the time required to onboard the large scale and scope of users, CDR was often limited to those with vast resources and exceptional technological prowess. 


SMB faces many of the same security challenges as their better-funded Enterprise competitors, but often without the depth of legacy systems to prevent destruction and cyber-attacks. 

While less known, and previously inaccessible to SMB’s CDR technology is now increasingly accessible in a SaaS format through a range of established and dynamic security organizations.

Only through the creation of CDR solutions specifically catered to SMB’s cyber constraints, can this technology take the leap from innovative ideas to industry-standard file-based protection systems.

Directly correlating to the high cost of cyber threats and risks to end-users, the need for new methods to mitigate cyber risk are growing by the day. By stopping the flow of new malware SMB can better utilize the less robust antivirus or firewall programs currently available without risking cataclysmic data loss due to security gaps in less comprehensive security protocols.

In practice, the advancements in CDR can facilitate this more effective ad hoc cybersecurity strategy if it is placed at a financially feasible price point for SMB. 

What’s next?

With a glut of technological options to improve data security, Content Disarm, and Reconstruction technology has traditionally has not taken center stage in most malware prevention strategies, however, with the rise of SMB geared solutions and SaaS pricing models CDR can more easily provide malware protection for the widest swath of users and organizations.

Director of Cyber Marketing at 

Bringing together his diverse professional cyber know-how, intellectual fascination with history and culture, and eclectic academic background focusing on diplomacy and the cultures of Central Asia, Yehudah Sunshine keenly blends his deep understanding of the global tech ecosystem with a nuanced worldview of the underlying socio-economic and political forces which drive policy and impact innovation in the cyber sectors. Yehudah's current work focuses on how to create and enhance marketing strategies and cyber driven thought leadership for odix (, an Israel-based cybersecurity start-up. Sunshine has written and researched extensively within cybersecurity, the service sectors, international criminal accountability, Israel's economy, Israeli diplomatic inroads, Israeli innovation and technology, and Chinese economic policy.

One thought on “How CDR improves file security

  • The3 use of the words malicious and malware are deceptive and not appropriate. CDR is content agnostif. Anything that has the potential to be harmful is processed. CDR does not know if there is anything malicious, it processes EVERYTHING as if it were malicious. If you embed “hello world.exe” in a Word doc(x) then it will be removed. Sanitized is the actual term. If there are pictures, it will sanitize them. There may be stenography, but CDR doesn’t know if there is. CDR processes
    ALL pictures, not just malicious ones.

    Any place that can house malicious content can house benign content and the container is treated the same regardless of content.

    CDR is NOT detection.


Leave a Reply

Your email address will not be published. Required fields are marked *