It is absolutely, positively ILLEGAL to pass along the CBT access and it's one of the few things that TBR pursues to the fullest extent of the law.
They are cheap enough to buy legally through their website. In a process where you will spend anywhere from $100K to $250K on school, about $5K to $7K on applications, and all sort of time, is it really worth the ethical compromise to save $100 by stealing CBTs?