As you create an account on Facebook, be careful about all the personal information you volunteer during the registration process. Facebook only needs your name and a (fake) birthday. Do NOT use the same password you use for your e-mail or other sensitive online accounts. If your Facebook account is compromised, you do not want a hacker owning a password that s used in multiple places. Be very careful about who you invite and approve to be your friends, and be selective.
Source: https://threatpost.com/as-you-create-an-account/91676/