---
title: klearis < Zero Trust File Security
description: klearis offers proactive file security by sanitizing every file, eliminating threats without compromising usability or performance. Secure your organization against all file-borne attacks.
---
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[](https://klearis.com)
[](https://klearis.com)
- [Learn About CDR](https://klearis.com/learn-about-cdr)
- Products
- [Web Upload Security](https://klearis.com/web-upload-security)
- [File Transfer & Storage](https://klearis.com/file-transfer-storage)
- [Email Security](https://klearis.com/email-security)
- [Safe File Downloads](https://klearis.com/safe-file-downloads)
- [Secure Collaboration](https://klearis.com/secure-collaboration)
- Use Cases
- [Cross-Domain File Transfer](https://klearis.com/cross-domain-file-transfer)
- [Secure Document Exchange](https://klearis.com/secure-document-exchange)
- [OT/IT Boundary Protection](https://klearis.com/ot-it-boundary-protection)
- [Secure Client Communications](https://klearis.com/secure-client-communications)
- Resources
- [Blog](https://klearis.com/blog)
- Company
- [About](https://klearis.com/about)
- [Career](https://klearis.com/career)
- Partners
- [Partner with Us](https://klearis.com/partner-with-us)
- [Partner Portal](https://partnerportal.klearis.com)
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- [Learn About CDR](https://klearis.com/learn-about-cdr)
- Products
- [Web Upload Security](https://klearis.com/web-upload-security)
- [File Transfer & Storage](https://klearis.com/file-transfer-storage)
- [Email Security](https://klearis.com/email-security)
- [Safe File Downloads](https://klearis.com/safe-file-downloads)
- [Secure Collaboration](https://klearis.com/secure-collaboration)
- Use Cases
- [Cross-Domain File Transfer](https://klearis.com/cross-domain-file-transfer)
- [Secure Document Exchange](https://klearis.com/secure-document-exchange)
- [OT/IT Boundary Protection](https://klearis.com/ot-it-boundary-protection)
- [Secure Client Communications](https://klearis.com/secure-client-communications)
- Resources
- [Blog](https://klearis.com/blog)
- Company
- [About](https://klearis.com/about)
- [Career](https://klearis.com/career)
- Partners
- [Partner with Us](https://klearis.com/partner-with-us)
- [Partner Portal](https://partnerportal.klearis.com)
[Linkedin](https://www.linkedin.com/company/klearis) [X](https://x.com/kleariscdr)
## Every file sanitized.
## Every threat eliminated.
#### klearis takes a fundamentally different approach to file security. Instead of trying to detect malware—an arms race you can never win—we eliminate the attack surface entirely by deconstructing files and rebuilding them threat-free.
[Learn More](https://klearis.com/learn-about-cdr)
## Enterprise-Grade Protection
#### Defense that doesn't compromise on usability or performance.
##### **Protects Against Even Zero-days**
Complete protection against unknown threats. Our approach doesn't require signatures or prior knowledge of an attack—if it could be malicious, it's removed.
##### Signatureless Prevention
No signatures, no detection needed. Every file is sanitized regardless of whether a threat is known or unknown.
##### Easily Configurable
Not all files require identical treatment. klearis includes a sophisticated policy engine that enables granular control
##### Flexible Deployment
On-premise or air-gapped installation to meet your security and compliance requirements
##### Sub-second Processing
Average processing under 1s ensures no disruption to business workflows or user productivity.
##### Format
##### Fidelity
Reconstructed documents maintain full visual appearance, formatting, and functionality—users won't notice the difference.
##### REST API
Effective CDR deployment requires integration with the systems where files enter your organization.
##### 100+ Supported
##### File Types
From common documents to specialized formats—complete protection across your entire file ecosystem.
## What we do
#### Understanding the technology that's transforming enterprise file security
#### **The Shift from Reactive to Proactive Security**
For three decades, the cybersecurity industry has been built on the premise of detection. Antivirus software compares files against databases of known malware signatures. Sandboxes execute suspicious files in isolated environments to observe their behavior. Machine learning models analyze file characteristics to identify anomalies. Each of these approaches shares a common assumption: that we can reliably distinguish malicious files from benign ones.
This assumption is increasingly untenable. Modern attackers employ sophisticated evasion techniques specifically designed to bypass detection mechanisms. Malware can detect when it's running in a sandbox and remain dormant. Polymorphic code changes its signature with each infection. Fileless attacks operate entirely in memory, leaving no artifacts for antivirus to scan. Zero-day exploits leverage vulnerabilities that no signature database contains.
The result is an arms race that defenders are structurally destined to lose. Detection systems must be perfect—they must identify every possible attack—while attackers need only find one technique that works. The asymmetry is inherent to the detection paradigm itself.
CDR eliminates this asymmetry by changing the question. Instead of asking "is this file malicious?" (which requires knowing every possible form malice could take), CDR asks "does this file contain only the elements it should?" This is a question with a definitive answer. File format specifications define exactly what components a valid file should contain. Anything else—whether it's a known exploit, an unknown zero-day, or a future attack that hasn't been invented yet—is removed during reconstruction.
New malware variants daily
560
K+
AV-TEST Institute registers over 560,000 new malicious programs and potentially unwanted applications every day.
Malware delivered via files
94
%
The vast majority of malware reaches organizations through email attachments and file downloads.
Average breach cost
$
4.45
M
IBM's Cost of a Data Breach Report identifies the global average cost of a data breachs.
## Use Cases
#### Everything you need to protect your organization from file-borne threats.
[](https://klearis.com/web-upload-security)
#### **Web Upload Security**
Web upload portals are prime targets for attackers delivering malicious files, but CDR technology neutralizes these threats by sanitizing every upload automatically.
[](https://klearis.com/file-transfer-storage)
#### **File Transfer & Storage**
Every file shared or stored is a potential attack vector. CDR eliminates this risk by cleaning documents in real-time, ensuring safe storage and seamless file exchange.
[](https://klearis.com/email-security)
#### **Email Security**
Email remains the primary vector for file-borne attacks. Deploy as an inline filter with minimal configuration.
[](https://klearis.com/safe-file-downloads)
#### **Safe File Downloads**
Files downloaded from the web represent another significant attack vector. Users download clean files without noticing any security intervention.
[](https://klearis.com/secure-collaboration)
#### **Secure Collaboration**
Storage platforms are increasingly used for file sharing and collaboration, creating new attack vectors. Protect shared workspaces without changing how teams collaborate.
## Testimonials
#### Trusted by security teams
After deploying klearis, we've had zero file-based security incidents. The peace of mind alone is worth the investment—but the reduction in SOC alerts has been a huge operational benefit too.
We evaluated sandboxing solutions but the delays were unacceptable for our trading floor. klearis processes files in milliseconds with complete protection. It's exactly what we needed.
The cross-domain capability was essential for defense sector. klearis met all certification requirements while integrating seamlessly with our existing infrastructure.
## We Protect Industries Worldwide
#### How organizations across sectors deploy klearis to protect their operations
### [Government & Defense](https://klearis.com/cross-domain-file-transfer)
[Government agencies and defense sector need to move files between networks of different classification levels. klearis provides cross-domain sanitization, ensuring no hidden content, covert channels, or embedded malware crosses security boundaries. [See More](https://klearis.com/cross-domain-file-transfer?hs_preview=mqyUiTTb-310863591664)](https://klearis.com/cross-domain-file-transfer)
### [Finance](https://klearis.com/secure-document-exchange)
[Banks and financial institutions handle thousands of sensitive documents daily—loan applications, financial statements, wire transfer instructions, legal contracts. Each document from an external source represents a potential attack vector. [See More](https://klearis.com/secure-document-exchange)](https://klearis.com/secure-document-exchange)
### [Manufacturing & Critical Infrastructure](https://klearis.com/ot-it-boundary-protection)
[Industrial organizations must protect operational technology networks from threats that could impact physical processes. [See More](https://klearis.com/ot-it-boundary-protection)](https://klearis.com/ot-it-boundary-protection)
### [Law Firms](https://klearis.com/secure-client-communications)
[Law firms handle some of the most sensitive information in any industry: privileged attorney-client communications, confidential business strategies, intellectual property disputes, merger and acquisition details, and litigation materials. [See More](https://klearis.com/secure-client-communications)](https://klearis.com/secure-client-communications)
## Ready to secure your files?
##### Process real files, see what gets removed, and verify that document fidelity is preserved.
##### Fill out the form and we’ll be in touch shortly.
### Contact Form
Products
Products
- [Learn About CDR](https://klearis.com/learn-about-cdr)
- [Web Upload Security](https://klearis.com/web-upload-security)
- [File Transfer & Storage](https://klearis.com/file-transfer-storage)
- [Email Security](https://klearis.com/email-security)
- [Safe File Downloads](https://klearis.com/safe-file-downloads)
- [Secure Collaboration](https://klearis.com/secure-collaboration)
Use Cases
Use Cases
- [Cross-Domain File Transfer](https://klearis.com/cross-domain-file-transfer)
- [Secure Document Exchange](https://klearis.com/secure-document-exchange)
- [OT/IT Boundary Protection](https://klearis.com/ot-it-boundary-protection)
- [Secure Client Communications](https://klearis.com/secure-client-communications)
Company & Partners
Company & Partners
- [About](https://klearis.com/about)
- [Career](https://klearis.com/career)
- [Partner with Us](https://klearis.com/partner-with-us)
- [Partner Portal](https://partnerportal.klearis.com)
Resources
Resources
- [Blog](https://klearis.com/blog)
[](https://klearis.com)
- Legal Stuff
- Privacy Policy
© 2026 klearis. All Rights Reserved.
[X](https://x.com/kleariscdr)[Linkedin](https://www.linkedin.com/company/klearis)
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