1.4.4 has just been released and it includes multi-site support which is now in beta. We’ve tested this on sub-domains but not sub-directories. It should work fine though.

Install Wordfence in your Network admin. Network activate it immediately. Until you network activate it, it will be listed on your individual blog’s plugin pages even though they won’t be able to activate it. As soon as you network activate wordfence, it dissapears from the individual blogs plugin pages.

The Wordfence menu will only appear in your Network Admin page. Individual blogs have no access to Wordfence which makes sense to us because it’s the Network Admin’s job to take care of security.

You will see live traffic for ALL sites in your network. Disable live traffic if this is overwhelming, security will still work.

Wordfence security options apply to all sites in your network. Counters count across all sites. E.g if someone failes a login on site1.example.com and then site2.example.com we count that as 2 login failures.

Let us know how it works for you!