Bittrex well known exchange that has put an emphasis on the security of its users. The exchange is secure, it has never been hacked . On the downside, Bittrex seems offer minimal customer support. While the trading platform is solid, I would use it with caution. See full review

Platincoin, is a site for investments that didnt allow you to get back any profit. it is allowed to exchange for fiat in Coinsbit, but the exchange takes more than 4 weeks to finish a transaction. take care.... they only allow change 20 plc monthly (just 100 euros) ..... it is sad because my parents had invested their savings. .... I hope they do it better in the next months.See full review