Nathan Preston, Member
@nathan_preston
You can activate your Capital One QuicksilverOne credit card online or by calling 1-800-227-4825.
If you opt to activate your credit card online, you will be required to enroll in online banking if you do not have an account yet. After being signed in, you will be required to enter the 3-digit security code on the back of the card.
Alternatively, you can activate your Capital One QuicksilverOne through the mobile app. Sign in with the same information as your online account. Tap your profile, then “Account Settings,” then “Activate Credit Card.” After that, enter the 3-digit security code when prompted to activate the card.
The card will be available to use for purchases immediately after you complete the activation process.

Capital One QuicksilverOne Cash Rewards Credit Card
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