Few things you need to take note:

1.) Only join telegram via trusted website's link, i.e. ICOdrops, never ever join telegram from suspicious website
2.) Never reply to PM from project admin, they are too busy dealing with the telegram they dont have time PM each of the member to get money
3.) If you receive email from a project asking you money or offering you special offer, think twice why you are so special? What did you do to entitle for the offer? If no, ask in official telegram if the email is legit, I can assure you 99.99% are scam
4.) Dont anyhow participate in ICO, 95% of them fail, red flag: lending, investment, logistics, currencies, market place, social media, AI, advertising, marketing, there are too many of such projects and they dont need that much money to start a legit project

GOLDEN rule: Only invest in what you can afford to lose