END CSAM Act

This bill makes it unlawful for social media companies to knowingly host child sexual abuse material (CSAM), imposing civil penalties of $100,000-$500,000 per violation. It requires companies to establish a public notice process for reporting CSAM, mandating removal within 10 days of notification. Private citizens can sue companies that fail to remove reported CSAM, potentially recovering 25-50% of penalties collected under a "qui tam" provision. The law explicitly preserves Section 230 protections for most online content but creates new liability specifically for CSAM hosting.