- I sent 0.005 BTC from my Ledger Nano wallet (Segwit) to my Bitstamp wallet.
- When checking my new balance on a public address reader, an additional 0.603 BTC was removed. I then checked the transaction online on blockchain.info and the 0.603 BTC went to an unknown-to-me address (I never authorized nor performed this second transaction).
- My Ledger Nano wallet (Segwit) balance on my Ledger Desktop app always showed the correct balance (with only -0.005 BTC) when the other sites all showed the incorrect balance ( -0.603 -0.005 BTC).
- I finally transfered the total remaining balance from my Ledger nano to Bitstamp as a test, and I got back the 0.603 BTC missing.
- What is interesting is that the total of the transaction (authorized 0.005 + unauthorized 0.603) is equal to a transaction I have done two weeks before (from an exchange to my Ledger Nano).
Can someone explain to me what happened? By not understanding what happened, I am fearful of other unexpected transactions and wonder if I should still use my Segwit address.