Seeing the constant hacking of Ethereum wallets, we've developed a system that cancels unintentional transactions that occur in Ethereum wallets.
We thought we could use the same nonce value(with higher gas price) for transaction transmission in Ethereum to overwrite the transaction that was previously sent, so we could prevent it to some extent.
If you'd like to try it out, please search 'TX-ray' on google chrome webstore and download it.
I hope you guys to give me a lot of feedback. Thanks