http://coinmamailtcrg7fw6uorut3d35bk35rtmntkrtb4fgeov6pefvfutqd.onion/blog/is-using-a-bitcoin-exchange-safe
A limit order, on the other hand, may take longer to execute, but gives the buyer or seller more control over their trade. On a crypto exchange, transactions can be made for fiat or for other coins, with most exchanges offering the option to trade several cryptocurrencies to BTC, as well as some additional common pairs such as trading to Ethereum (ETH) or Ripple (XRP).