I received the following email. I did not respond but felt you should know.
AppIe Service
<4178027418@jo73br5mn2.askjdsjnnjjasd-asdfweesa.la4>
To:
xxxxxxxxxx@yahoo.com
Dear Cutomer,
Your Apple ID Account was sing in to icloud with Other Devices site at :
Date: 14.5.2019 13:05:31
Country: Lao, People's Democratic Republic
IP Addres: 125.53.211.231
Support team detect unauthorised person has accessed
your account and now your account access has been locked for security measures, you
must update your account and reset your account password, info.
if you do not update your account within 24 hours (from epening this email) it will be Temporary Limited.
Thanks you for your comprehension.
Apple Support Team.