There is something sinister going on

I have four accounts (with different seed phrases) that have gotten hacked in the last 10 hours while I was asleep. The last transactions on these accounts were nearly a year or more ago! I woke up today to find the account drained of all the eth and some of my NFTs stolen.

I am very careful about what I connect to my wallet to. Two accounts is never logged into. Haven't been logged into for more than a year let alone connected to anything. All access was revoked before we stopped using it completely.

One account is used for contracts but nothing else.

We have been very careful about how and what we connect to and what access we give. And like I mentioned two of the account has not been accessed for more than a year!

The only reason I found out about the breach was becasue I got a notification saying two of our NFTs were sold successfully. WTF?

We are small fish, majority of our NFTs are defunct, our accounts mostly had less than .1 ETH so its not like we had a lot or made a lot of money. Infact, we lost a lot of money, but this was a huge blow!