Bitcoin sentiment has deteriorated sharply across X, Reddit, Telegram and other platforms, with analytics firm Santiment saying the positive-to-negative commentary ratio fell to 0.58-to-1, its lowest level since its modern social tracking began. Santiment linked the slump to a reported July 31 Coldcard firmware exploit that drained more than $40 million in BTC and shook confidence in self-custody and hardware wallet security. The firm said the fear reading stood out even against shocks such as FTX, Mt. Gox and the COVID-19 market crash, and added that sentiment was hit despite Bitcoin remaining up 1.20% on the week and 4.34% on the month.