When you activate a card lock, your issuer temporarily disables new transactions.
Locking your credit card is one of the most effective, immediate ways to protect your finances from fraud, manage your spending, and secure your accounts if you misplace your wallet. Unlike canceling a card, locking it is a temporary "off switch" that can be reversed in seconds through your bank's mobile app or website. What Happens When You Lock Your Credit Card? lock your credit card