Many companies will realize the benefits they get when using blockchain, and eventually there will be many people using blockchain without knowing it.
I think you've totally missed out on the point here, how in God's name is cyber attacks going to spur companies on to use the blockchain technology
Considering the fact that the bitcoin itself has fallen prey to such attacks in the past..
There happens to be no correlation between such attacks and the promotion of bitcoin...
One just has to protect him/herself from such attacks irrespective of what platform one is on...