Rory Cellan-Jones, writing for BBC News:
Trading Standards officers are seeking to halt sales of a device that has been claimed to offer protection against the supposed dangers of 5G via use of quantum technology.
Cyber-security experts say the £339 5GBioShield appears to no more than a basic USB drive.
This story is incredible in so many ways.
Especially when you get to this:
Each of these USB keys costs £339.60 including VAT, though there is a special offer of three for £958.80.
But, at first sight, it seems to be just that – a USB key, with just 128MB of storage.
“So what’s different between it and a virtually identical ‘crystal’ USB key available from various suppliers in Shenzhen, China, for around £5 per key?” asks Ken Munro, whose company, Pen Test Partners, specialises in taking apart consumer electronic products to spot security vulnerabilities.
And the answer appears to be a circular sticker.