The account was definitely hacked in April of this year. I do not know how the hacker managed to bypass the 2 stage security controls. The hacker sent out various silly messages to guests using my account and cancelled 3 of my reservations. Airbnb then decided that this was unacceptable behaviour by me (although the actions were not done by me) and proceeded to cancel a further 14 reservations which I had in place without consulting me at all.
I had previously had 1 regrettable incident in February of this year when a customers bags which they had left in storage before checking in were interfered with at my property (by my own daughter unfortunately) and they left a one star review. Apart from this I have not had any problems with guests or neighbours and all of the visitors have been happy as far as I know.
Meanwhile Airbnb has not bothered to contact me at all and my account remains blocked after 3 weeks. I have basically given up on Airbnb, their customer service is non-existant and their communications are zero. I have now listed my apartments on other better managed web sites.
It is a pity that Airbnb which used to be a great facility has become so awful.