OKX says it has recorded record exchange inflows after the Coldcard hardware wallet exploit prompted some users to move assets from self custody.The exchange said it prevented $26.3 million in scam related losses and protected more than $1.1 billion in customer assets during the first half of 2026.Galaxy Research has confirmed thefts totaling 1,596 Bitcoin across three attack waves, with losses potentially reaching 2,055 Bitcoin if a fourth wave is verified.The Coldcard flaw has renewed calls from security experts for independent testing of hardware wallet firmware and seed generation.