Hardware-enforced write blocking and air-gapped malware triage — before suspect media ever touches your system. No host PC. No configuration. No training. No risk.
A USB drive, external hard drive, or SD card can carry a virus without looking any different from a safe one — there's no way to tell just by looking at it. Plug an infected one into your computer, and that virus can spread through your whole network in seconds. The antivirus software already on your computer often can't stop it, because some attacks happen the instant the drive is plugged in, before any scan even has a chance to start.
DF-X1 fixes this the simple way: plug the drive into DF-X1 first, not your computer. It checks the drive on its own, completely disconnected from everything else. A green light means it's safe to use. A red light means it's not — don't plug it in. No computer skills needed, and nothing to set up.
The Problem
One Drive Can Take Down an Entire Network
In an era of cloud security and zero-trust networks, the USB port remains the one gap every firewall, endpoint agent, and cloud solution completely ignores. Attackers know it. The data proves it.
1 in 4
industrial cybersecurity incidents in 2025 were caused by a USB plug-and-play event — someone simply plugging in a drive.
Honeywell 2025 Cyber Threat Report | 1,826 unique USB malware threats detected in Q1 2025 alone
Why USB attacks are rising — not falling — in the cloud era
As organizations hardened email gateways, patched VPNs, and added MFA, sophisticated threat groups shifted to physical media — because the USB port is the one attack surface cloud security cannot touch. Air-gapped military networks, classified law enforcement systems, hospital OT infrastructure, and industrial control environments all move data on physical media by design. One unscreened drive is all it takes.
FBI Confirmed
FIN7 BadUSB — Defense Firms
Malicious USB drives mailed to defense contractors. Plugging in deployed ransomware instantly — no clicks, no warnings. Zero antivirus detection.
Mandiant / Google Intelligence
SOGU USB Espionage — 29+ Agencies
China-linked actors infected USB drives that self-replicate across networks. Government, health, and transportation targets. No internet connection needed to spread.
Honeywell 2025 Report
80% of USB Malware Can Disrupt OT
Of 1,826 USB threats detected in Q1 2025, 80% were capable of causing industrial outages — loss of control, loss of visibility, or full system shutdown.
🪖
Military & Federal
Air-gapped classified networks move all data on physical media by mandate. One infected drive brought in by a contractor or analyst can compromise the entire network before a single alert fires.
🚔
Law Enforcement
Evidence drives collected at crime scenes contain unknown payloads. Plugging directly into a precinct workstation puts CJIS-regulated networks at immediate risk with no chain of custody protection.
🔍
Investigators & Forensics
Digital forensic analysts handle suspect media daily. Without hardware write-blocking, existing scanning tools modify files — a chain of custody violation that can render evidence inadmissible in court.
🏥
Healthcare
USB-delivered ransomware is the fastest-growing attack vector on hospital OT networks. A single infected drive can encrypt patient records, disable medical devices, and trigger HIPAA penalties exceeding $1M.
🏢
Enterprise
Contractors, vendors, and IT staff bring removable media into secure environments daily. One unscreened drive bypasses every firewall, zero-trust policy, and endpoint agent on your network.
🛡️
Insurance & Risk
Cyber insurers increasingly require documented USB screening procedures as a condition of coverage. Without a hardware-verified audit trail, USB-borne incidents may not be covered under existing policies.
How It Works
Five Steps. Zero Risk.
From insertion to safe connection — automated, hardware-enforced, and completely air-gapped.
›
01
🔌
Insert Media
USB-A, USB-C, or SD card inserted into the suspect media port.
›
02
🔒
Write Locked
Hardware write-blocker activates at silicon level. Zero bytes written. Impossible to bypass.
›
03
🔍
Scanning
LED: YELLOW. Air-gapped read-only threat engine analyzes every file. No network connection.
Full product and market overview — use the arrows to advance slides.
Slide 1 of 12
DF-X1 Forensic Console
Secure, Air-Gapped Media Intake & Threat Triage. Know it's safe before you plug it in.
The $8.4B Critical Security Blindspot
Unverified portable media remains the #1 physical vector for ransomware and malware in 2026.
When systems go dark, the mission fails.
💀
Active Threat Vector
$8.4B
Global USB-borne malware damage
Legacy Triage Invalidates Evidence
The "CDR" Problem
Metadata Alteration:Content Disarm systems strip critical forensic metadata.
Evidence Spoliation:Writing logs back to suspect media renders it inadmissible in court.
Reactive Scanning:AV-based kiosks fail to block firmware-level attacks (BadUSB).
The Intake-First Paradigm
Hardware-Enforced Security
The DF-X1 is a standalone, air-gapped node that creates a physical barrier between suspect data and your secure network.
→ Silicon-level write blocking.
→ Read-only threat triage.
→ Stateless, zero-config operation.
🛡️
Physical Barrier
Air-gapped during every intake
DF-X1 V1: Field Ready
Headless Triage for Officers
Designed for patrol vehicles and booking stations. Simple, rugged, and fast.
🟡 LED Status Ring: Yellow → Green = Safe
Stateless design: No data remains after scan
Instant-on, zero training required
Vehicle-mount ready · USB-A · USB-C · SD
🚔
Patrol · Field · Vehicle
LED: Scanning
LED: Clear
DF-X1 V2: Office Unit
Advanced Lab Diagnostics
For investigators and precinct evidence desks requiring full chain-of-custody documentation.
Touchscreen GUI & Bluetooth App
Dual concurrent intake bays
Full Merkle Manifest chain-of-custody
Per-port LED rings · SHA-256/SHA-3
🖥️
Detective · Prosecutor · Office
Port 1
Port 2
Dual concurrent — both clear
Blocking 100% of Write Risks
Software Write-Blockers
35% Vulnerable
Enterprise CDR Kiosks
55% Spoliation Risk
DF-X1 Hardware Block
0% Risk
Unlike software-based solutions, the DF-X1 write-lock is enforced at the silicon level prior to any file system mount.
Immutable Chain-of-Custody
Forensic-Grade Hashing
The device computes cryptographic fingerprints at the exact moment of intake.
SHA-256 / SHA-3: Volume-level integrity proof.
Merkle Manifests: V2 generates per-file hashes for granular admissibility.
One-Way Data Diodes: Reports exit without return path to suspect media.
🔐
SHA-3
Cryptographic intake hash
Hash computed before file system mount
Updating Without Exposure
⏱️
Time-Gated Firewall
Immutable 120-second window for cryptographically-signed signature updates.
📲
Optical Transfer
Zero-network update delivery via authenticated QR symbols captured by on-board sensors.
🛡️
Signed Packages
Offline updates via dedicated, physical "Update-Only" peripheral interfaces.
Tailored for High-Stakes Sectors
Public Safety
Law Enforcement, Federal Agencies (FBI/DHS), and military JAG court-martial units.
Legal & Discovery
DA offices and e-Discovery firms requiring pre-analysis intake validation.
Critical Infrastructure
Hospitals (HIPAA compliance) and Financial Services (Fraud investigation).
40%
Backlog Reduction
A Million-Dollar Case for Efficiency
By shifting triage to the "Edge" (cruisers and precinct desks), labs can focus on high-value deep analysis.
The DF-X1 reduces manual handoffs, prevents accidental ransomware exposure, and guarantees evidence admissibility — saving millions in potential litigation costs.
Questions?
Secure the chain of custody. Protect the network.
Michael K. Gemmell
Warrenton, VA | dfx1forensics.com
mike@dfx1forensics.com
Provisional Patent Application Filed under 35 U.S.C. §111(b)
See It in Action
The DF-X1 in the Field
See what happens when unknown media connects to a secure network — and what happens when it doesn't.
Press play to watch the full DF-X1 walkthrough (3:36)
Competitive Advantage
Nothing Else Does This.
Enterprise kiosks cost $10,000–$50,000 and modify your evidence. The DF-X1 doesn't.