Today's cryptocurrency and blockchain news Bitcoin is down 1.5% at $7,870 XRP is down 3% at 40 cents and Ethereum is down 2.5% at $243 Top gainers in the last 24 hours: GX Chain up 23% and Vertcoin up 21% Bittrex will be removing access for over 30 crypto assets for its USA based users. Whale Alert flags bitcoin moving from the 2016 Bitfinex hack. Hackers have apparently breached over 100 ripple wallets managed by GateHub. Coinroom exit scam. Bitcoin trade volume on Coinbase hit a 14 month high in May.