02-17-2019 , 10:20 AM
Quote:18,000 Android apps with tens or hundreds of millions of installs on the Google Play Store have been found to violate Google's Play Store Advertising ID policy guidance by collecting persistent device identifiers such as serial numbers, IMEI, WiFi MAC addresses, SIM card serial numbers, and sending them to mobile advertising related domains alongside ad IDs.
The issue here is that, while some of the companies behind these apps will most probably say that they're not actually using persistent device identifiers for ad targeting, they are still violating the Google Play Store Advertising ID policy guidance.