thanks everyone for the replies.
Perhaps the translation was not very accurate - my English is far from ideal and I have to use Google.
The scheme of work is as follows: I use the standalone version of the client. The Electrum profile itself does not exist on the computer - it is in the archive under a password. If I need to make a transaction, I unpack the profile folder to a specific location, indicate this location to the program, enter the password and get access. At the end, I close the program, again I archive the profile folder with its removal from the location.
Those. Initially, there is no folder with a wallet or a file with a phrase on the PC. Therefore, I cannot understand how exactly without this phrase and in the absence of access to the wallet file, access to transactions could be obtained.
And - yes, I imagine how the blockchain works. Please don't waste your time visualizing how much smarter you are. Thank you.
You didn't answer my question in the beginning. In the first post.
Where did you store your seed?
All you said about archive program and password means nothing and this doesn't increase your security.
With the seed anyone can just download electrum and move your coins. The seed should be your main concern.
The seed phrase should always be written in paper, which is unhackable.
It is very likely that your computer is compromised and the hacker just got access to your seed. This may have happened in the time you just created the wallet and saw the seed for the first time or later on.