The launcher was updated on my computer and immediately after the reboot
the account was blocked and a mail about two-hour lock was sent to my post box. Why do you do this?
Those are probably unrelated, the lock is possibly someone trying to log in to your account. It’s best to enable two-factor authorization for your login for security.
I think this is highly likely related, so after clicking the update and reload button launcher status has changed to disconnected. There is no such probability that hacker tried to login direct at the moment when the launcher was in reload.
Your account is the same as it is if you try to log in in a web browser, they don’t need to run the launcher to try and log in to your account, and all they need to try is to have your email address.