Do I need to change the lock to lock the password of the second-hand house?
Need. According to Qizhuang's inquiry. Com, it is necessary to replace it, because after buying a house, the property right belongs to you. If some criminals or people who start to have keys open the wrong door, it will also have a great impact. For home, it is necessary to pay attention to safety at any time, so it is necessary to change the lock.