Cyber security experts have warned that the notorious North Korean hacking group "Lazarus Group" may be targeting US bitcoin ETFs as a new target. Michael Pearl, vice president of GTM strategy at Cyvers, said hackers may turn their attention to US bitcoin ETFs due to the potentially huge returns. According to Dune data, US ETFs currently hold $52.10 billion worth of bitcoin, which is an attractive target for hackers. Pearl warned that not only ETF providers could be targeted, but all companies associated with them would also be at risk, so ETF vulnerabilities are an issue that needs to be addressed quickly or there could be a "super hack" event.