Mark Karpelès, former CEO of Mt. Gox, revealed that the exchange's 2011 source code was analyzed by AI Claude, which identified significant security flaws. These included code errors and weak passwords linked to the 2011 hack that resulted in 2,000 BTC loss. Despite past improvements, underlying issues in internal processes and security remained. Over a decade after its collapse, Mt. Gox is set to return 34,689 BTC to creditors by October 31.