"SDKs and mobile advertising IDs. Our mobile applications may include third-party software development kits ("SDKs") that allow us and our service providers to collect information about your mobile app activity. In addition, some mobile devices come with a resettable advertising ID (such as Apple's IDFA and Google's Advertising ID) that, like cookies and pixel tags, allow us and our service providers to identify your mobile device over time for advertising purposes."
Capital One uses advertising IDs, SDKs, cookies, and device fingerprinting to track users across websites, apps, and devices over time, building unified profiles for advertising purposes.