Researchers: despite Apple's ATT changes, at least three popular iOS apps are sending identifying info to third-parties even when users opt-out of tracking (Washington Post)

Washington Post:
Researchers: despite Apple's ATT changes, at least three popular iOS apps are sending identifying info to third-parties even when users opt-out of tracking  —  On your iPhone, you can now tap a button that says, “Ask app not to track.”  But behind the scenes, some apps keep snooping anyway.