Entering the mail without hacking on Yandex?

Question

Yandex

For several months now I have been observing how someone enters the box in the "login history" list, but at the same time there are no left ips in the "visit log" of Yandex.

On the 24th, I changed my password (a set of characters + numbers that has no logic), logged out of all sessions, but today again someone somehow went to the mail:

But this entry was not recorded in the log book:

How does it happen and what make?
ps action plan from yandex support

Judging by the fact that the login was carried out via the IMAP protocol, a third-party mail client is connected to the mailbox. If you are sure that you have not connected any clients to your mailbox, we strongly recommend that you proceed in the following order:
1. First of all, check your computer for viruses with free anti-virus programs free.drweb.ru/cureit and www.kaspersky.ru/antivirus- removal-tool . Install an antivirus and firewall if they haven't already been installed. Perform a virus scan regularly and do not forget to update your anti-virus databases.
2. Be sure to set on the page https://passport.yandex.ru/passport?mode=changepassa completely new password that will be difficult to guess. Our recommendations at the link https://yandex.ru/support/passport/security.html#p... will help you create a password correctly .
3. Check if there are other people's phones on the page https://passport.yandex.ru/profile/phones . Be sure to link your number! The phone is the most reliable means of access recovery.
4. Set up a new security question. The answer to it should not be known to anyone but you, and should not be easily guessed. You can change the question and answer here: https://passport.yandex.ru/passport?mode=changereg .
5. Check if there are other people's addresses on the page https://passport.yandex.ru/profile/emails/list. Please note that addresses like [email protected], [email protected], etc. (near which there is no cross to delete) - not strangers! These are aliases https://yandex.ru/support/mail/web/letter/create.h... .
6. Use the link "Log out on all computers" ( https://passport.yandex.ru/passport?mode=passport )

I would also add - disable the use of imap in the mail settings if you do not use mail programs.

Answer 1

contact Yandex support

Answer 2

And the PC from which the password was changed was checked for viruses, trojans?

Answer 3

Click THIS IS NOT ME

Answer 4

Did you insist on any proxies?

Answer 5

Had the same problem.
Turning on two-factor authentication helped