​​How to Freeze Your Discover Credit Card 

• ​Open the Discover app on your iPhone.
• Once the app is opened, enter your user ID and password and then tap on Log In.
• Tap on your credit card account.
• You will see several icons at the bottom and at the very bottom right corner of the screen, you will see a More icon with three dots.
• Tap on the More icon. 
• Under security, you will see an option which says ​Freeze Account.
• Tap on Freeze Account.
• On this screen, you can read what happens when you freeze your account. If you are okay with that, go ahead and tap on Freeze Account to freeze your account.
• Once you do that, you will see a message which says your account has been temporarily frozen.
• If you would like to unfreeze your account at any point of time, you can come back on the screen and tap on Unfreeze Account.