Ethereum closed a giant safety gap with its energy-saving replace

Ethereum, the world’s second-largest cryptocurrency, slashed its power use with a significant change to the way it works final 12 months. Safety consultants say the replace additionally unknowingly sidestepped a critical safety flaw that might have allowed hackers to steal funds. Nonetheless, at the least one cryptocurrency that “forked” from Ethereum by copying its code remains to be in danger.

Ethereum used to depend on “proof of work” to safe its community, as bitcoin nonetheless does, that means that computer systems carried out big numbers of calculations to “mine” new forex and …