Deutsche fine justified?

Not sure if this belongs here, or in investments, but check this out:

S Korea’s top court fined Deutsche with no right of appeal, for what Deutsche calls delta hedging activity on one of their exotics posn. This is a bit scary, no?

This happens everyday in european markets, and I think it’s a bit scary if you could get fined like this for aggressive trading around a price level. Anybody knows what exactly is the wrong doing here? I’m not sure if I see it

Not all the details are there. Either they were trying to take advantage of some dislocation (sell cash when the basis goes far from spot), or they were actually trying to manipulate the closing level, to avoid a barrier event. If it’s the second scenario, then that is pretty bad and they should be fined a ton of money.