Yesterday I lost 11 BTC from my Bitcoin Core 25.0 wallet.  The wallet wasn't open at the time.  I don't know how it happened. Lots of emotions right now.  

edit to add:

Definitely not my wife. We live in a rural setting. She doesn't have the computer knowledge to even launch the wallet. This was an external hack.

I first noticed when I logged into Koinly and saw my BTC balance was reduced.  I then launched Bitcoin Core and it was about a week behind.  Showed my 11btc as it updated, then hit the date of the hack and it went to zero.  Wallet is encrypted and appears to work fine. PC is turned off now and hard drives will be wiped. This definitely sucks, but not the end of the world.  Opportunity for others to learn or be reminded from my mistakes.

Also, the coins have not moved from hacker address.   After further investigation this looks to have been caused by a botnet.

edit 2:

All of my addresses in Bitcoin Core are segwit.  I can't seem to find a way to create a signed message with segwit and Bitcoin Core.  If you don't believe my post that's fine.  I'm not looking to gain anything, just want to tell my story so others don't make the mistakes I did.

TX IDs of the four transactions that drained my wallet:

e4fda9c61c782ad0035ee9b5c551e7e48a67c294499ae7cdc6702c7d3b06b19e

1ec109e71874990c33afd66eff4050776a1ba796d92b97cea8dc48b948fed6c8

95e9e7a88536668bbfaaf12b417ec3ec74d851d018726511ec797061d495c97a

ed8e7988e4c000b05c1814c3aaeb5170a452ee54c2dd33cc1e533fbc885ec25d