Re: A chip hidden in a charging cable?
There's a limit to how much power can be handled without damaging something. I'd much rather the cable takes the hit and fuses than the socket in my phone. Pretty sure if something went wrong with your USB wall plug and it sent 120v or 240v AC down the wire, the USB-C socket in your phone or laptop could not gracefully sense that and cut it off without any damage.
Some USB wall plugs are a horror show of dangerously unsafe engineering. You get good ones from Apple, Samsung, etc. of course, but if you buy random ones off eBay or Amazon you might want a cable able to sacrifice itself to save your phone! I used to have one I bought online years ago (before I realized just how poorly made some were) that's labeled 'Abble' LOL. I saw something online about that 'brand' being particularly dangerous and tossed it!