Write correctly.
Did you get the red message of 不正ログインの対象ではありません as a result of the procedure which I explained? If you can get it, you need not mind more. Probably, almost all users will be applied to this case.
If you can't get it, you must follow the new procedure written there as a result.
In that case, probably the E-mail about 不正アクセス is also delivered to you directly from the company.
Only the company knows the structure of this check.
If you have some questions, you can ask from the following. However, there seems to be no necessity.
https://www.nicotto.jp/user/support/supportform
Did you get the red message of 不正ログインの対象ではありません as a result of the procedure which I explained? If you can get it, you need not mind more. Probably, almost all users will be applied to this case.
If you can't get it, you must follow the new procedure written there as a result.
In that case, probably the E-mail about 不正アクセス is also delivered to you directly from the company.
Only the company knows the structure of this check.
If you have some questions, you can ask from the following. However, there seems to be no necessity.
https://www.nicotto.jp/user/support/supportform
The company managing this service announced as follows.
Unauthorized access has occurred.
Someone may have logged in using others' account.
So please check whether your account has been used for unauthorized access.
Go to the following URL when you are logging in this service.
http://www.nicotto.jp/user/account/loginform
Then push the button of 確認する.
If you can see the following red message,
your account has not been used for unauthorized access.^^
ログインIDの状況 不正ログインの対象ではありません。
Your account is OK?
It is safer if you change your password.
please change your password for safety.