this is not possible to be hacked. in my eyes ALL recent "hacks" = inside attack from employers. because when you run btc-wallet on secured enviroment it s practically impossible to hack funds. but you must keep safe (hardware in controlled location, alternative transport layer for broadcasting funds from cold storage, and so and so on).... it s very sad this is happening again and again. this is only point when i say maybe a little bit control/regulation for exchanges is good. (example - BTC foundation makes team for testing btc-exchanges and only when it s really secure it gets a certification for securement)... but there is 10000 ways for making it s all better and safer.
(all is only my opinion)
thank you
This is obvious how can someone hack an offline wallet with a remote attack? It is
impossible. Maybe as you said them were only a lot of inside job for stole all the bitcoin and claim a presumed hack.