I believe the point of compromise happened at one of two places.
1. Using the Ledger to connect to the one of the two BTCP/BTCD Electrum Wallets. The BTCP has an app on the Ledger. The BTCD does not.
2. I don’t recall doing this for my BTC seeds but I might have input them in my hand into the BTCP/BTCD wallets.
That would mean a keylogger has compromised my setup. I’m not normally adventurous in downloading foreign software, generally, aside from rogue Bitcoin wallets (heh...).
So I’m not blaming the BTCP or BTCD Electrum wallets outright as it could have been me inputting my BTC seeds. I don’t recall doing that with my BTC seeds but Indo remember doing that with the old seeds that’s had the BTC already moved.
If anyone is familiar with the BTCP Electrum wallet off Github, that’s where I got it. I’ll have to confirm but I believe I also got the BTCD from there. I’m sorry if this is unclear. My head is spinning and I’m not sure on where I was compromised.
Nothing would have happened if you only use that forked Electrum with your Ledger device,private keys are always safe in device-you enter your Ledger seed in that Electrum forked wallets,and one or both were false.I'm really surprised that you can not even remember what exactly did you do in process of losing 13
BTC.
You made a beginner mistake,first you have to know how something works and than work with that-you did exactly the opposite.Ignorance and greed are the main factors of this story,and because of that hackers live like kings these days.Your loss is just a drop in the sea of tens of millions, and maybe even hundreds of millions $ which are lost in this way.