If you lost your Cash App Card then what would your reaction. What needs to be done immediately to protect the Cash App balance. You must be aware that the Cash App fund and Cash Card are linked. Whenever you lost your card then your Cash App fund is vulnerable. Hence, to protect the Cash App money, you should immediately disable the card from the Cash App. Apart from disabling the card from Cash App, you can also approach customer services to apprise them about the incident. To minimize the risk of losing money online, one must keep a minimum balance in the Cash App fund.