Bitcoin climbs as risk sentiment improves, altcoins hit by exploit concerns

Bitcoin advanced while altcoins continued to struggle after the weekend's DeFi exploit, with markets eyeing Middle East tensions and shifting risk sentiment. What to know : Bitcoin rose to $76,500 and faced resistance near $77,000 as traders defended a breakout above $78,300. Ether and altcoins lagged after the $290 million KelpDAO exploit, with DeFi tokens under pressure and sentiment still fragile. Markets are tracking developments in the war with Iran, with easing tensions potentially boosting risk assets and weighing on oil.