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Despite a certain decrease in the popularity and demand for digital coins, many users continue to use them actively. This is favored by the specific features and capabilities of cryptocurrencies. Often there is a need to exchange one type of crypto for another coin. What to do? In this article, we will consider one of the best solutions for the cryptocurrency exchange - Changelly. Is it safe enough and worth trying? Is Changelly legal? Is Changelly scam? All of these questions will be answered in this article. 
Bitnomial was founded in 2014 to create a marketplace connecting native digital asset hedgers with institutional traders.
Poloniex launched in 2014. It is based in the United States. It was recently acquired by Circle, a large Goldman-Sachs backed company. The exchange faced a hacker attack soon after opening which caused a higher level of security provided later. It requires a user’s physical address, postal address, date of birth, id, and phone number.