Update: got seemingly Garuda-related fraud on this card a while after doing this

Just got the follwing email from GarudaVerification <GarudaVerification@garuda-indonesia.com>. It seems pretty sketchy but discussion on this facebook post seems to indicate that it is real.

Dear Sir/Madam,

Please be informed that your transactions with Garuda Indonesia has been
confirmed. For fraud prevention purposes on Credit Card transaction, we would
like to validate your recent transaction with Garuda Indonesia by providing
information, as follow:

Passenger(s) name :
Route :
Date of Travel :
Cardholder name :

Please kindly provide only scanned/image of front side credit card used for
buying the ticket for validation purposes.

Please reply this email in 24 hours after received this email to secure your

Thank you for your cooperation.

Best Regards,
Verification Data Management
Management Building Garuda City 1st Floor, Soekarno-Hatta International
Airport, CGK 19120, Indonesia

Called Garuda in Indonesia at +622123519999. They confirmed that this is indeed a legitimate email.