I wanted to participate in the Iagon pre-sale. I joined what I thought was the official Iagon telegram. Turned out it wasn't. I followed the instructions on the pinned message, which directed me to send ETH to a specified wallet address. Turned out it was all a scam, and I lost 5 ETH.
Really sucks. The lesson is be careful out there.
About the telegram group, i think it would be a lot safer if we look for the real group through the official announcement or from the original website of the project, that would be the safest way to find the right telegram group.