You can file a report online through the CyberTipline . This is the primary reporting mechanism for CSAM in the United States and works with law enforcement globally.
If you have encountered a file with a name such as "Children Sexy (335).mp4" that appears to contain Child Sexual Abuse Material (CSAM), you should report it immediately to the appropriate authorities. Children Sexy (335).mp4
If the file is hosted on a website, social media platform, or cloud storage service, provide the exact web address (URL) in your report. You can file a report online through the CyberTipline
Note down where you saw the file name and any associated usernames or metadata, but do not interact with the file further. If the file is hosted on a website,
It is illegal to download, possess, or distribute CSAM. Do not attempt to "investigate" the content yourself or forward it to others.