We have received about two dozen of these multiple failed login attempts over the last two weeks or so.

We have added all the offending IP addresses to our list of IPs that are banned from viewing the board at all. Almost all of them were unique and originating in various Asian countries. We have a much larger commercial blacklist of IPs, but that doesn't kick in until the login or registration attempt is successful at first.

We have consulted with several security folks who kicked our tires and confirmed that our appropriate controls are in place, up to date, and working. This is just something that happens in this pesky e-world.

Again, sorry for the nuisance to those who are being pinged. The advice in the first post here about having a good password and marching on continues to be the most sound and actionable intel we have found.