From the version of NVR below, if the password is wrong during remote access, logs of failed log-ins will be saved. (As of March 2019)
The logs are in ‘Menu> System> General> Show System Log …’.
The attempted ID and IPAddress are saved.

DR-1304P / 6.1.0 or higher
DR-1308P / 6.1.0 or higher
DR-2304P / 6.1.0 or higher
DR-2308P / 6.1.0 or higher
DR-2316P / 6.1.0 or higher
DR-6216 / 6.1.0 or higher
DR-6332P / 6.1.0 or higher
DR-8364 / 6.1.0 or higher