A plugin to help deal with dos attacks and other hack attacks

RE: dos attacks, anti hacker plugins, elgg security   dos- denial of service and other kinds of attacks

There are certain plugins available for other cms's which help beef up the security i asked about this about 5 months ago and no one or mainly the core team has focused on this or maybe they have and i dont know about it? is there any plugins coming to elgg to help prevent these things happening if not prevent then at least slow it down in any way possible even the smallest thing?