A weekend crypto heist has sent ripples well beyond decentralized finance. 64-year-old investment bank Jefferies LLC is warning that Wall Street's growing embrace of blockchain technology could hit pause due to the heist, Bloomberg reported on April 21. The attack, which drained nearly $293 million from KelpDao and triggered a $10 billion bank run on Aave, one of the largest decentralized lending platforms, was reportedly carried out by North Korean hackers. It is the biggest DeFi breach of the year, coming just weeks after a separate North Korea-linked attack stole over $270 million from Drift, a trading platform ... (full story)