Sec Tip Tuesday: Unsolicited Packages—A Hidden Threat to Our Security 

Welcome back to Sec Tip Tuesday! As U.S. defense contractors, we’re entrusted with safeguarding sensitive systems and data, making us a prime target for sophisticated threats. One often-overlooked risk? Unsolicited packages, especially those containing removable media (like USB drives) or cables. These seemingly innocuous items can be Trojan horses for espionage, malware, or physical compromise. Let’s unpack this threat and lock down our defenses. 

The Risk: What’s at Stake 

Unsolicited packages aren’t just clutter—they’re potential attack vectors. State actors like China, Russia, Iran, or North Korea could use them to bypass our cybersecurity, steal defense secrets, or disrupt operations. A USB drive might carry malware; a cable could be rigged to spy. Even non-malicious packages can sow confusion, distracting us from real threats. For us, the stakes are national security. 

Physical Security: Handling the Package 

The moment an unexpected package lands on your desk, it’s a security event. Here’s how to respond: 

• Don’t Touch It Yet: Avoid handling until it’s vetted. A package could contain hazardous materials or concealed devices. 

• Check the Source: No label or a vague return address (e.g., overseas with no sender details)? That’s a red flag. 

• Isolate It: Move it to a secure area away from critical systems or personnel. Contain the risk. 

• Notify Security: Report it immediately—don’t wait. Trained personnel can assess and dispose of it safely. 

Cybersecurity: The Danger of Removable Media 

USB drives, SD cards, or similar media in unsolicited packages are classic attack tools. Plug one in, and you could unleash chaos. 

• Assume It’s Malicious: Even a branded USB labeled “Conference Swag” could harbor ransomware or spyware—think Stuxnet-style payloads. 

• Never Connect It: No curiosity checks on personal or work devices. One plug could compromise our network. 

• Secure Disposal: Hand it to IT security for forensic analysis or destruction. Don’t toss it in the trash—adversaries might retrieve it. 

• Train the Reflex: Reinforce this rule: Unknown media stays out of our systems, no exceptions. 

Cables: The Sneaky Threat 

Charging cables or data connectors in unsolicited packages can be just as dangerous. Modified cables—like the infamous “O.MG Cable”—can log keystrokes, inject malware, or exfiltrate data when plugged in. 

• Inspect Before Use: A cable might look legit but hide a chip. Compare it to known, trusted ones. 

• Source Your Own: Use only company-issued cables from verified vendors. Random arrivals are suspect. 

• Ban Unknown Cables: Policy should prohibit plugging in anything not explicitly approved. 

Counterintelligence: The Bigger Picture 

Unsolicited packages often tie to espionage. China might send “gifts” to build rapport or plant bugs; Russia could use them to test our vigilance. Even allies might inadvertently forward compromised items. 

• Spot the Pattern: Multiple unsolicited deliveries? It could be a coordinated probe. Track and report trends. 

• Beware Social Engineering: A package might come with a note—“From your friend at [conference]”—to trick you into trusting it. Verify independently. 

• Protect Insiders: Employees receiving these could be targeted for recruitment. Brief staff on the risks. 

What Are Real-World Examples?

This isn’t hypothetical. In 2018, Chinese spy chips were allegedly found in hardware shipped to U.S. firms. USB drives dropped in parking lots—known as “baiting”—have infected networks worldwide. A rigged cable could sit unnoticed for months, quietly siphoning data. As a defense contractor, we’re in the crosshairs. 

Your Action Plan 

If an unsolicited package arrives: 

1. Don’t open or use it—treat it as a potential threat. 

2. Alert security or IT immediately—speed matters. 

3. Log it—details like sender, contents, and timing help us connect dots. 

4. Stay skeptical—question anything that feels off. 

We’re not just protecting our desks; we’re guarding national defense. A single lapse with a USB or cable could unravel years of work. Stay alert, and let’s keep these threats outside our walls. 

Stay vigilant, 

Jason P. McCoy 

Program Manager 

CloudFit Software 

Sources:

The Big Hack: How China Used a Tiny Chip to Infiltrate U.S. Companies | Bloomberg 

Stuxnet | Science Direct 

USB Security Attacks Are Still a Threat | Redmond Magazine  

About the Author

Jason McCoy

Jason McCoy, Program Manager at CloudFit, is an 18-year Federal Law Enforcement Veteran, with over 10 years of experience in investigations and counterintelligence. Prior to joining CloudFit, Jason worked for both the Air Force Office of Special Investigations and the FBI.