Miners solve complex mathematical problems, and the reward is more Bitcoins generated and awarded to them. Miners also verify transactions and prevent fraud, so more miners equals faster, more reliable, and more secure transactions. Bitcoin is "less risky than bonds" and other asset classes, MicroStrategy's CEO told CNBC following Fidelity's embrace of the cryptocurrency. Compass Mining cut ties with Russian crypto miner BitRiver https://allcoinss.com after the US sanctioned the company and its subsidiaries last week. Our new digital magazine goes beyond the daily headlines to put crypto and blockchain developments in perspective. The largest cryptocurrency's correlation with tech stocks has strengthened.