I can't imagine how IDCM exchange is on the coinmarketcap's top list.
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Be very careful about this exchange. Management often uses fake ICO projects to deposit coins for neutral users. They run a very questionable business. They are known to steal user assets.
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As you've read in many online sources, users themselves have lost their money in this exchange. Avoid this exchange if you don't want to lose your money forever.
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