If you suspect a charge on your account may be fraudulent, please call us immediately at 1-800-955-9060. You can also lock your card when signed in to chase.com or the mobile app.
Go to Fraud Protection to learn steps you can take to be more secure. You can also go to our Security Center to learn more about the steps we take to keep your information safe.
We monitor your account 24/7 using sophisticated real time fraud monitoring and can text, email or call you if there's any unusual activity on your account. To assist us, please update your phone number in case we need to contact you quickly. We may contact you for account servicing, such as payment questions, or if we suspect fraud on your account.
Go to Phishing to learn how to protect yourself from fraudulent emails and more.
To lock or unlock your credit card, choose your account from your accounts page, go to the "Things you can do" or the more options menu and choose "Account services," then "Lock & unlock your card" and follow the instructions.
Lock and unlock your credit card
With Chase's Zero Liability Protection you won’t be held responsible for unauthorized charges made with your card or account information.
Browser software often stores (or “caches”) web pages in your computer’s temporary memory. By signing out and exiting your browser at the end of an online session, you reduce the possibility of someone else seeing your confidential information.
To dispute a charge, sign into chase.com and go to your account activity then choose the arrow next to the amount to see the transaction details. For more information go to our step by step instructions.
Submit your dispute within 60 days of the transaction first appearing on your statement.
You’ll need to wait for the credit card transaction to post before you can dispute it.