I agree with @alejos7ven the problem is the irresponsible person who decided to use something that was there available.

This situation at least was clarified quickly and the lesson was learned. The steemit team will definitely change keys after the month is over.

The way of blaming the whole team is very wrong, you need evidence before to call somebody "thief". The team has acted quickly I know that because was a witness of it. I think we all will be cautious in the future.