I am very sorry that this unfortunate incident happened to you, especially when you just arrived in Vienna and got to see a side of it, which I wish nobody to experience.
To address you concern about renting out an insecure home - I am also living in the same house and my door (as every other apartment door in the building) is secured by the same lock system.
You called me to meet you in the apartment directly after you realized the break-in, while the police was already on their way. I arrived immediately after you told me and was as shocked as you were. When the police arrived, I tried my best to translate and clear the situation.
I understand that you did not feel secure in the house after just being robbed and wished to leave. I can assure you, that I tried my best to assist you with all other necessities. Again I am very sorry that this happened to you, but I can assure you that I did the best in my power to help with this situation.