MTS subscribers, change the password from the Internet Assistant

On November 11th, massive brute force passwords were noticed.

Accidentally went to the online assistant in the "Archive of operations" and saw

November 11, 2011 17:41 IP: 81.177.167.34 Attempting to log in with the wrong password
November 11, 2011 09:26 IP: 81.177.167.34 Attempting to log in with the wrong password

For fun, I typed ip in Yandex / Google and saw that not only did I notice brute force. All friends who are subscribers of MTS have exactly the same story in the logs, the same ip and time are morning and evening. Some people chose a password because the password was 123, a phone number, etc.
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Network data

inetnum: 81.177.166.0 - 81.177.167.255
netname: INSOLVERTC6
descr: In-Solve / 1Gb.ru hosting services provider
country: RU
admin-c: DM3950-RIPE
tech-c: DM3950-RIPE
status: ASSIGNED PA
mnt-by: AS8342-MNT
source: RIPE # Filtered

% Information related to '81 .176.0.0 / 15AS8342 '

route: 81.176.0.0/15
descr: RTCOMM-RU
origin: AS8342
mnt-by: AS8342-MNT
source: RIPE # Filtered