This is a good question. Improper operation of ETFs can also lead to theft, but the theft of ETFs has nothing to do with users, because under the supervision of the SEC, ETF institutions must repay 100%, so there is no need to worry about this. This is also the reason why I want to do BTCFi, which is compliant, secure, and easy. Silicon Valley Bank has paid off such a big debt (not to mention overseas, which is not under the jurisdiction of the SEC), this is the SEC's supervision.