How to use the virtual password of the Fingerprint Scanner?

Many people can see the feature of "virtual password" written on the password function in the promotional materials when purchasing Fingerprint Scanner.

Now many people have replaced their home doors with Fingerprint Scanner, but in the tall elevator apartments, in order to make rational use of space resources, the developer has many households on one floor, and the distance between the doors is less than two meters, which can be said to be a good match. And some owners who are closer to the side have their doors under the surveillance video, so the question is, how to use the password when there are neighbors or outsiders? Fear of password leakage, fake passwords come to help.

Data shows that most people can remember irregular numbers and letters in a short time. It just so happens that our Capacitive Fingerprint Scanner only have numbers, and most people will not set long numbers when setting passwords. Most of the respondents set 4-6 digits as passwords, because too long is not conducive to remembering, especially for the elderly, which is more conducive to malicious people peeping and causing unnecessary property safety accidents.