Bitcoin's resilience doesn't depend on widely distributed mining power. It just requires self-interested miners, says CoinDesk columnist Hasu.
It is profitable for exchanges to list low market-cap coins, despite the potential for 51 percent attacks, say two VCs from Dragonfly Capital.
Two mining pools recently carried out a 51 percent attack on the bitcoin cash blockchain.
Cryptocurrency exchange Gate.io has corroborated claims that the ethereum classic network is under a 51 percent attack, disclosing a loss of 40,000 ETC.
Ethereum classic's blockchain has been hit by a suspected 51 percent attack, leading to reorganizations of its transaction history.
After losing money during a 51 percent attack earlier this year, crypto project Horizen claims to have a solution to crypto's famed vulnerability.