Date of birth: asking for the date of birth is another mechanism to check the validity of the user, since it is personal data, it has to be handled by the account owner.
How can I prove that it is my profile? To confirm the mobile phone, you have to write the code that you received by SMS in the Confirm box, which will appear when you log in.
The idea is that you manage to recognize them because being your account, you manage the personal information of your profile, such as the name of your friends.
The moment you enter Facebook, the power is yours over everything you have, that is, you are giving it access to all your data, although you can set privacy limits.
If you fail to supply that information, the system will detect that it could be an imposter who is trying to improperly enter the profile of another individual.
Currently, Facebook is one of the most used social networks to share content and personal information with friends and family, at the same time that it can function as a means of work interaction.