In Watchdog, I started seeing several entries like this:
Login attempt failed for admin.
access denied 2016/04/04 - 15:06 admin
These are generating a fair number of log entries. The IP address is different for each request; they all geolocate to Russia.
Obviously, this is not me, and there doesn't appear to be any particular danger to my site, but is there a way to minimize such requests?