I setup a new instance of HA (25.2) on a Raspberry Pi 3 using the all-in-one method. I haven’t had a chance to migrate over the settings from my production HA so it’s just been running with the defaults. I examined the logs this morning and noticed a constant stream of warnings about invalid logins:
Aug 02 12:11:36 raspberrypi2 hass[5472]: WARNING:homeassistant.components.http:Login attempt or request with an invalidpassword from 192.168.1.101
Aug 02 12:11:39 raspberrypi2 hass[5472]: WARNING:homeassistant.components.http:Login attempt or request with an invalidpassword from 192.168.1.101
Aug 02 12:11:43 raspberrypi2 hass[5472]: WARNING:homeassistant.components.http:Login attempt or request with an invalidpassword from 192.168.1.101
The local IP corresponds to my Synology Disktation, which I’m using as a VPN. When I open the HA frontend and login, I see a successful log in log, followed by the constant stream of warnings. The warnings stop when I close my browser or logout.