This is not new, hackers are also opportunist. They are much like a magnet attracted to metal (money). However, companies and end-users aren't doing what they need to defend themselves. Do you think there's a conspiracy about this? As the old cliche goes by, an enemy will get close information to his enemy and they use it as an asset.
The best thing to do is to stay clear from the enemy. In this case by keeping your money out of the exchanges and in a secure computer.