Anti X-Ray

A lot of people on my server have been using the X-Ray hack lately. I am 100% certain this is what they are using because two of them told me before getting banned: http://www.minecraftforum.net/viewtopic.php?f=25&t=153516

Is there a mod someone can create or some way to prevent X-Ray hacking? Thanks.

 

Not posible until (unless) Notch figures out appropriate client-server coding.

 

Unless notch gets it together and decides to the use the client-handshake model that should have happened to begin with.

 

I third this, xray is only possible because Notch chooses to tell things to teh client and have it render things he should not be, and if he fixed it, Minecraft would be much faster as well.

 

oh its possible install better grass how I did and you can see x-Ray trough grassblocks