icloud account was locked
goodmorning
i have iphone 5s before then this week i bought iphone 8 then i used my account the same with my iphone 5s
then after that apple sent me a mail that someone used my account then after that my account was automatically
locked and i cannot recover because my icloud account was locked
please help me to recover my account because i cannot signout my account on my iphone 8
or even reformat