Content Warning Signs About Another Giant Bitcoin Exchange 10 Of The Top Cryptocurrency Exchanges Have Lost Their Place Bitfinex, one of the biggest exchanges, said it was investigating a denial-of-service attack, while Coinbase said its GDAX platform had a “minor service outage.” Gemini said bitcoin deposits were temporarily unavailable. The hack was “a highly professional… Continue reading Worlds Top 5 Cryptocurrency Exchanges With The Lowest Fees