All Deserve Mastercards are unsecured credit cards and do not require any type of security deposit.
A secured credit card is a type of credit card secured by a deposit account owned by the cardholder. Typically, the cardholder must deposit between 100% and 200% of the total amount of credit desired.
Learn more about secured credit cards here: https://en.wikipedia.org/wiki/Credit_card#Secured_credit_cards