** Shares of cryptocurrency- and blockchain-related companies fall premarket as Bitcoin slides to more than three months' low on Tuesday

** Bitcoin BTC=, the world's biggest cryptocurrency, down 5.4% at $88,752, its lowest since November

** Ether ETH= falls 9.5% to $2,388

** Traders continue to process last week's hack of $1.5 billion worth of ether from crypto exchange Bybit

** Crypto exchange Coinbase Global COIN.O falls 4.6%, while Blockchain farm operator Bitfarms Ltd BITF.O down 7.3%

** Crypto miners Riot Platforms Inc RIOT.O down 3.8%, MARA Holdings MARA.O drops 6.3%, Hut 8 HUT.O falls 5.1% and Bit Digital BTBT.O down 7%

** BTC buyer MicroStrategy MSTR.O declines 6.2%

** BTC mining machine maker Canaan Inc CAN.O down 9%

** ProShares Bitcoin Strategy ETF BITO.P falls 5.7% and iShares Bitcoin Trust ETF IBIT.O slips 5.5%

** As of last close, BTC had fallen 5% YTD

(Reporting by Sanchayaita Roy in Bengaluru)

((sanchayaita.roy@thomsonreuters.com))