This is very 2013. Meanwhile in 2023, a decade later, you literally have systems detecting credit card fraud in milliseconds. [Disclosure: I work for StarTree, which is powered by Apache Pinot. We eat petabytes of data for breakfast.]
I'm not sure if you actually read the article with this answer. The article is explicitly talking about using real time data to make design decisions, detecting something like credit card fraud is completely different problem space.
I wonder if these are the same systems that "detect fraud" and freeze my bank account requiring manual intervention to fix the 2 times a year I send a random family member less than $2,000