Working away and suddenly a whole bunch of hits on my server from bots around the world lead me to suspect that these IPs are somehow working together in a coordinated attack of some kind.
Could be coincidental but just saw a whole bunch of hits in a short time period. I have been working all day and not been seeing this. These hits are from the usual suspects - Germany, Taiwan, etc.
And coincidentally - I just made a significant update to my web server. Seems as though they are monitoring changes.