Since a week or two I keep receiving the following automatic email message sent from my WordPress website, and I'd like to know if it indicates any security hole and if there's anything I can do to stop it :
"A host, 79.148.238.85(you can check the host at http://ip-adress.com/ip_tracer/79.148.238.85) has been locked out of the WordPress site at http://my_site.com until Friday, February 22nd, 2013 at 9:41:54 am UTC due to too many login attempts. You may login to the site to manually release the lock if necessary."