Burst was hacked yesterday.
...from online wallets. ... 60 different accounts were emptied out ..
these two lines are contradictory.
you can't say a "coin" was hacked (in this case Burst coin) when you really are talking about some account on some web wallet was hacked.
it is like saying "bitcoin was hacked when Mt Gox ran away"! obviously it was Mt Gox that scammed people or other cases like Bitfinex which got hacked because of their security flaws and it had nothing to do with bitcoin.
similarly if it was indeed some online account on some third party website then the issue is with that and it is the most common thing that has always been happening in cryptosphere!