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$350 USB Stick That Claims to Block 5G Is Actually a $6 Generic Thumb Drive

Security firm Pen Test Partners ordered the 5GBioShield, and found that it's just a cheap unbranded USB stick likely made in Shenzhen, China.

 & Michael Kan Principal Reporter

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(Credit: 5GBioshield's website)

No, 5G won’t give you coronavirus. But that isn’t stopping scammers from trying to exploit misguided fears about the technology. 

Case in point: A UK vendor has been selling a $350 USB stick that promises it can protect you from 5G radiation. But it turns out the product is just a $6 generic USB drive, according to a cybersecurity firm.

The makers of the “5GBioShield” claim their USB stick can block electrical waves through a “proprietary holographic nano-layer catalyst” technology. It purportedly does this by “balancing” all the existing radiations around you to create a protective bubble 8 meters in diameter, even when the USB drive is unplugged.

The website for the product goes on to make dubious references to “quantum oscillation,” “life force frequencies,” and “cardiac coherence” in an attempt to convince consumers the science behind the 5GBioShield is legit. But you’ll be pretty disappointed if you actually buy the product, according to Pen Test Partners.

(Credit: PenTest Partners)

The company ordered the 5GBioShield, and found it's just a cheap unbranded USB stick. Sure, the product does have a cool crystal handle. However, PenTest Partners discovered you can buy identical-looking USB drives on the internet in bulk. 

A teardown of the USB stick also revealed no holographic nano-layer catalyst technology. “First, we managed to pull the device off the crystal, which showed nothing other than an LED at the end of the stick, the same as the other ‘crystal’ USB keys we found made in (the Chinese city of) Shenzen. There were no additional components or any connections,” wrote company penetrator tester Phil Eveleigh in the report

(Credit: PenTest Partners)

The company also wondered if the nano-layer catalyst technology might be behind a circular icon on the USB drive. However, Eveleigh said the icon turned out to be a sticker. 

Making the $350 device even more underwhelming is how the USB stick contains a mere 128MB in storage. The only data on the stick is a 25-page PDF containing material already available on the 5GBioShield website. 

“In our opinion the 5G BioShield is nothing more than a £5 USB key with a sticker on it. Whether or not the sticker provides £300 pounds worth of quantum holographic catalyzer technology we’ll leave you to decide,” Eveleigh added. 

The makers of 5GBioShield didn’t immediately respond to a request for comment. But according to the BBC, local regulators in the UK are trying to obtain a court order to pull down the product’s website.

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About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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