my friend has an account of gmail and fb she has forgotten the password. the registered mobile number is changed. the alternative id is gmail. that is also not working. please help as the fb id is being misuued
Unfortunately, if, when you created the account, you have not registered a secret question which you remember, or an alternate recovery email address or phone number to which you have access to receive a reset code, you cannot prove that you are the account's legitimate owner. Hence account recovery is absolutely impossible and there is no way around it.