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Lightning Solves Bitcoin's Speed Problem, but Watch Out for Fraudsters

Lightning-based fiat-bitcoin systems could popularize crypto payments, as long as fraud and bitcoin's non-reversibility don't get in the way.

Zap founder Jack Mallers speaks at the 2019 Lightning Conference in Berlin. (Will Foxley/CoinDesk archives)
Zap founder Jack Mallers speaks at the 2019 Lightning Conference in Berlin. (Will Foxley/CoinDesk archives)