is it possible my card got stolen?

so last night 100 bucks got spent on my card, i cancelled it immediately and am gonna dispute the transactions when the banks re open. at the same time i copped sum off depop last week and it hasn’t been shipped yet. the guy said he “didn’t know he needed a ssn” to sell and asked if i wanted a refund, i said yes and he didn’t send it so i opened a dispute. i’m wondering if it’d all possible he got my card info somehow ? i’m not sure how but just wondering if it’s possible