Ari Paul, founder of BlockTower Capital, has alleged that Coinbase concealed over $1 billion in losses from hacker attacks and failed to return customer funds. Paul stated that while Coinbase initially attributed a $25 million loss of BlockTower’s funds to other causes years ago, subsequent investigations suggest the incident was part of a broader effort to cover up repeated large-scale security breaches. Paul claims on-chain tracking identified at least 12 affected companies, with total concealed losses exceeding $1 billion. He noted that multiple legal cases regarding these allegations are currently ongoing, preventing further disclosure of specific details at this time.