It's been a while, but I leave a reply.
There seems to have been a lot of hacking damage on Ethereum wallets, so I made a simple Chrome Extension this time.
The system automatically monitors the wallet and overwrites the user's unintended transactions by immediately generating higher gas priced transactions.
It's not perfect, but I thought it would be minimal protection.
Because, right now, my goal is to make it as easy as possible for anyone to have the minimal protection.
So if there's anything you're worried about hacking, I'd appreciate it if you could try it and give me feedback.
I need a lot of feedback because we still have things to improve!
so if you want to try it. check this -> https://chrome.google.com/webstore/detail/tx-ray-beta-protect-your/japgcbmdokcibjdencjalgfjeglgbcgc