You have to use the Search built into Telegram and you can find illegal stuffs within seconds.

Search for any of these phrases and it will return tons of channels to join:

- Combo lists - Check fraud - Redline Stealer - Bank logs

There are tens of thousands of channels on Telegram w illegal content and material.

I really do hope they dont shut it down bc it's an extremely valuable asset in terms of intelligence and monitoring criminals haha

Source: I work in CTI and actively monitor and scan thousands of Telegram channels.