Do not use Electron Cash and Electrum on the same Machine

In my last post

https://steemit.com/bitcoin/@idunno/how-to-prepare-for-bitcoin-split

I wrote to be very careful when using the electrum cash wallet.
Unfortunately, my worst guesses have probably worked out. The creators of electrum on their official Twitter have issued a statement not only to make backups of resources but also not use the electron wallet(the new name of electrum cash) in the same machine:

https://twitter.com/ElectrumWallet/status/891954053110001665

- ElectrumWallet

Why?
Because in the source code for the electron someone found a command that scans your computer to find all the electrum keys. This command can be used to extract the BTC from the Electrum portfolio, even if we have made a backup (we have transferred funds to another wallet).

https://twitter.com/ElectrumWallet/status/891935330235973633

- ElectrumWallet

Therefore, I am not recommending to use any products of BitcoinCash creators...