Can you track and or reverse an unknown, Unauthorized transaction that occurred. All of my ADA was wiped out. I have the transaction information available. How can something like this happen?
Nope thats not possible. You probably leaked your seedphrase somewhere.
I’m so sorry to hear that. But any transaction that has been made could not be reversed. I think somebody hacked either your computer/mobile phone. Or your seed phrase (15-words/24-words) has been leaked like @Zyroxa said above.
Either there is a malware in your PC/mobile phone or you put your seed phrase digitally online.
You can increase the protection by using hardware wallet such as Ledger + combined with Daedalus/Yoroi.