By turning on your location, this provides us important information. It can help us reduce declined transactions on your card and helps us protect you from potential fraud. When your mobile device's location is turned on, we can compare where the transaction takes place and where you are by using a number of factors such as recent activity, travel notes, your address, etc.
Your location data is encrypted and secured end-to-end. You can turn off this service at any time if you're not comfortable sharing GPS-level geo-location data.