Editor’s note: This article contains descriptions of imagery depicting child sexual abuse. Meta’s ad library—a transparency tool that catalogues ads displayed on the company’s platforms—shows the ads running across Facebook, Instagram, Messenger, and/or Threads. The findings are the second time in recent weeks that paid ads linked to child sexual abuse material have been found on Meta’s platforms. Meta’s ad library database does not include details about ad performance in the US or all countries, so the overall reach may be higher. Paul says the organization immediately reported the findings to National Center for Missing and Exploited Children’s CyberTipline, which allows people to report online child sexual abuse material.