Scam SMS - Skymemo

Got an SMS text message from an unknown number with a code I should use on When I type that code in; it shows a letter saying they have a lot of bitcoins and they are giving away 10 BTC to 10 random people. So far, typical scam email. It did pique my interest though. I created some new notes on Skymemo and the site seems to work as advertised. I have written a program to cycle through possible codes to see if I can find other notes on this site. Been running for about a week now and have not found a single other valid code. I can't see any security features on the site and if a 6 letter code is all that is needed; I would have thought I would have accidentally hit another code by now. Scam SMS - Skymemo


The note in skymemo gave me the username and password of a coinmace account. I logged in and changed the password. I also set up 2FA which worked in sending codes to my throwaway SIM. In the account I can see 10 BTC. I tried to withdraw them to my wallet; and it said I could only withdraw 0.0001 in first instance. I withdrew that amount (~$A7) and it appeared in my wallet immediately. I tried to withdraw the remaining 9.9999 and then it says; minimum I can withdraw is 10.01076 BTC. This is where the scam is. I need to put in 0.1 BTC in order to withdraw the rest. I reckon I will never see the 0.01076 BTC if I did that.

Playing around the coinmace site; it looks fully functional. I could create new accounts; could change user details. I can see transaction history, etc. Couldn't find any details about who Coinmace are in their About section or by googling.

I am impressed by how sophisticated this scam is - very very realistic and I can see how people can be tempted to pay a bit to try and get a lot.

Has anyone else seen this scam?

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Note: Some of the information in samples on this website may have been impersonated or spoofed.
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