I and my friend encountered this situation and I am sure many others would have too. Scammers contact the crypto users on telegram. They get your ID from crypto related telegram channels and then ask you for a help. The scammer tells you that he is not able to withdraw coins from an exchange and asks you help him by signing up on the exchange and withdrawing coins from there to the scammers address. In return they give you a few amount of bitcoins.
The scammers website asks you to deposit at least 0.01btc before you can withdraw any coins. People fall for this trap and hence get scammed.
Few of such sites built by the scammers: westcrypt.info , monocrypt.info , cryptoelips.com , westerncrypt.com
Find the discussion from various other people here:
https://forums.digitalpoint.com/threads/new-scam-site-danger.2842061/Be aware guys. Do not fall for such traps.
Thankyou for the information. Hopefully your friend would be the last victim. To be honest we must always be careful and not give our info immediately. We must know where we are going to put it and see if that was a legit or not because most of the time people was become greed because of the high value that offers to it.