The term "main cardholder" refers to the person who holds the primary ownership and responsibility for a credit card account. They are the primary user and are legally responsible for making payments and managing the card. Full definition
Up to nine additional cardholders can also receive this benefit if they're traveling with main cardholder. (valuepenguin.com)
If a suspected case of fraud is detected without the knowledge of the main cardholder, a fraud alert system can promptly alert the user of any suspicious activity. (lendedu.com)
While the benefit applies to the main cardholder, it also applies for up to nine additional cardholders when flying with the main cardholder. (valuepenguin.com)