I tapped the edit button next to the secondary authorization controls.

The screen asked me to enter a maximum single-transaction amount for all secondary cards tied to my Social Security number.

I typed in fifty dollars.

Below that was an option for Merchant Category Blockers.

I checked the boxes for Lodging, Resort Amenities, and Fine Dining.

A warning popped up in bright red text, asking if I wanted to require immediate phone authorization from the account owner for any transaction over the new security limit.

I selected Yes.