Hack Clients that Mojang still hasn't patched.

I am utterly shocked at how one of Minecraft's biggest client hasn't been patched? It's been 2 years now, everyone's heard about it, and yet no one has decided to patch it? It's the Horion client MCPE hackers use. I keep getting hacked by random hackers who keep doing this NBT thing on my worlds and realms messing it all up! Please Patch.