Notification email from Apple received in Indonesian language.

During the recent setup of a new iPad and iPhone using iTunes on an iMac, the restoration of a backup from a previous device required disabling of Find my iPhone service on the devices. On both occasions I received emails from Apple in a foreign language. Google translate reveals the email to be written in Indonesian and it says that "Find my iPhone has been turned off".

I Never receive any other emails from Apple in Indonesian or any other foreign language.

is this a known bug or are there any security concerns that I should be aware of?