Industrial CT scanner manufacturer Lumafield imaged an O.MG USB-C cable revealing sophisticated electronic components secreted within the connector.
The headline is clickbait I think. The whole point of the O.MG cable is to hide electronics in the connector. It's advertised as a hacking tool. The analysis of what can be seen in there may be interesting, but it's not like this is secret knowledge.
Its designed to be used for pen testers so they don't have to spend $20,000 on the alternative cable. Its a single cable thats costs like $200, so im not really worried many people are going to get hacked because they accidentally bought a $200 cable.
The intended use for this kind of product is that you hire a company to break into your company, and then tell you how they did it so that criminals (or, if you're someone like a defence contractor, foreign spies) can't do the same thing later. Sometimes they're also used by journalists to prove that the government or a company isn't taking necessary precautions or by hobbyists at events where everyone's aware that everyone else will try to break into their stuff. There's typically vetting of anyone buying non-hobbyist quantities of anything, and it's all equipment within theoretical reach of organised crime or state actors, so pentesters need to have access, too, or they can't reasonably assess the real-world threat that's posed.
There are plenty of hacking devices on the market equal or worse than this. The truth is you want these devices available in the public so people are award of them and nerds can learn how to protect against them.
The malicious inclined wont care about legal availability and some tinkers will make them if not only for the technical challenge.
These sorts of tools and knowledge should be free and open, so people can test their own systems and learn how to defend against them. They aren't inherently bad themselves. As with firearms, it's all about what you do with it.
Hiding a potential exploit from the general public does them no good.