If your husband uses your debit card without your permission in 2026, the situation is a grounded and serious matter that falls under unauthorized use and potential financial fraud. Legally, unless he is a "Joint Account" holder, his use of your individual card is a "hard-fail" breach of banking security. A supportive next step is to contact your bank immediately to report the transaction as unauthorized; if reported within 48–72 hours, your liability is often limited to $50. In a "Safe Bubble" context, many banks now allow you to "freeze" your card instantly via an app, which is a high-fidelity way to stop further spending. From a grounded legal perspective, using someone else's card without consent can be considered identity theft or theft by personation, even within a marriage. For a supportive resolution, you should consult a family law attorney, as "financial infidelity" is a serious grounded issue in marital law. Protecting your "Bujan" credit score and individual financial autonomy is a "Gold Standard" priority for your long-term security.