Phone number verification! Is it necessary to secure the account?

[dondiego 0]

yup it is necessary... for you to have a safe account and an alternative way to verify that you actually use your account and not by somebody else

[Shazniah 0]

Yes it is,this is very useful because once someone is trying to log in your account,notification arrives to you through text,you can receive the notif even you are not online.