Reddit mentions of CritterCord Micro Cord Protector

I wouldn't put them outside, especially if they've gone so long without learning how to stay safe out there. If your neighbors are so far away, I'd be worried about what sort of wildlife you have in your area. I doubt the cats are maliciously targeting your things alone, they probably have just decided that "wires over here are fun" and not extended the concept to other wires. Or they like chewing on wires that were near you.

I watched my cat destroy a cell phone cord one day. It was quite thin, he just casually walked up and bit it, the way outdoor cats will approach long blades of grass, and that was it. It was too thin to hold up to even one bite. It wasn't malicious, and I think he was as surprised as I was that it broke so easily. (Although maybe the look of surprise was that I was rushing towards him saying, "No! Bad cat!")

Regardless, it sounds like you need to protect your wires. Bitter sprays have never really worked on my cat, but are worth a shot. I'd personally go with wire covers. (I'd put one on your wife's mouse, too, just in case they re-direct their attention to it when they can't get to yours. I'd also cover any wires that are similarly thin.)

There are a lot of options. This one looks like it might be exactly what you need. There's also a larger size for power cords. Or, if you want to cover every wire, there's a bulk option.

You might also want to provide them with cat grass so they have an appropriate outlet for all their chewing.

http://www.amazon.com/Cord-Protector-Crittercord-Protect-Hazardous/dp/B0014H51DY/ref=sr_1_1?ie=UTF8&qid=1419908124&sr=8-1&keywords=cord+protectors

maybe... but some of the amazon reviews are varying. there's plenty of options for just covering the entire cord but then of course that just adds bulk to the cord itself. maybe some sugru would help if he only chews up one certain part of it.

CritterCord Micro Cord Protector

https://www.amazon.com/Critter-Cord-micro-CritterCord-Protector/dp/B0014H51DY/ref=sr_1_2?ie=UTF8&qid=1466209968&sr=8-2&keywords=critter+cord

Okay, making a separate post for this. Apparently they do sell "critter cords" for phone chargers and such. Found this on Amazon, but shop around for that brand. Also, one of the reviews in that product said you can buy things like that at Lowe's so it might be worth looking there, too. Buns aren't as bad as rats, but it might deter him long enough to save your cords.