Recently people have been using an exploit on Teamspeak through private messaging to crash user's clients.
It's some sort of BB code exploit, but thankfully Insane found a fix for it.
There is a new recent exploit on TS3 that allows users to crash any vunerable client via a poke, channel message, or private message. If you do not want to be a victim to their malicious message, install this plugin: http://screech.me/ts3/plugins/antifreeze.html
and enable your TS3 lua plugin under Settings > Plugins, and restart TS3 or press the reload all button inside the plugins menu.
If you find anyone using this exploit please alert an admin immediately so that the person can be perm banned.
Thank you and happy gaming!