From IP Geolocation to WiFi Positioning: The KYC Evolution. In 2023, a major European fintech platform rejected a high-value transaction not because the credit card was stolen, but because the user's device was detected within a specific coffee shop in Berlin, despite the user claiming to be in a different district. The system utilized a technique known as WiFi positioning to triangulate the device's location with meter-level precision, overriding the broader geographic data provided by the user's IP address.…