well, it's not only cancel protection, it's a privacy tool. Imagine your credit card # like a SSN common across multiple platforms. Now imagine that SSN being d

well, it's not only cancel protection, it's a privacy tool. Imagine your credit card # like a SSN common across multiple platforms. Now imagine that SSN being different every time. Furthermore, if a platform gets cracked that credit card # has a limit with little to no value. The ease of pulling the plug on one platform is an added bonus.