LinkedIn says it discovered a pair of video and ad metrics measurement errors that led to 418K advertisers overpaying for campaigns for over two years (Sahil Patel/Wall Street Journal)

Sahil Patel / Wall Street Journal:
LinkedIn says it discovered a pair of video and ad metrics measurement errors that led to 418K advertisers overpaying for campaigns for over two years  —  The errors affected more than 418,000 advertisers on the professional networking platform for over two years