Three WP activity monitor is unmatched in its ability to easily reveal unauthorized login probes and attacks, even before they might reach a blocking threshold. However, since version 2.1.8 of another popular security plugin, Better WordPress Security, BWPS prevents Three WP Activity Monitor from reporting failed login attempts, even though the remainder of 3WP activities seem to report fine. It would be great to have our cake and eat it, too, with respect to having the full range of both of these plugins functional together. Since this is likely not an easy fix, just my wish for the future.
Also, to echo what someone may have already posted, the ability to export the activity shown as an easily readable Excel or other spreadsheet/log would be invaluable, since it would let the non-expert user retain a full history of persistent attack attempts while allowing less retention and thus less load on site in the database. Again, just a wish.
Thanks again for a great plugin.