Gather the links
- Copy the t.me link to each offending message or channel (Message → Copy Link).
- Note the channel @username.
File the report
Email dmca@telegram.org for copyright removals, or use Telegram's abuse/ NCII reporting for non-consensual intimate imagery. Include the t.me links, a statement of ownership, and your signature. Telegram acts on public channels; private ones are harder and may need the NCII route.
Proactive blocking
For private intimate images you never published, a free hash-matching service run by the UK Revenge Porn Helpline fingerprints the images on your own device and sends only the fingerprints, so its partner platforms can block re-uploads. Telegram is not one of those partners, and the service does not accept content you sell: for that, copyright notices remain the route.