When you rent a house or when you moved in into your new home, you always have to think about the safety and security of you and your family first and foremost. You must (if you are allowed by the landlord to do so) change the locks and door knobs of each and every door. If you can, you should also put few CCTVs in place for added security.
Being safe and secured should always be your number one priority at home. Here’s some more info about being safe no matter where you are located.