【3520 BTC stolen by social engineering attack targeted at American seniors】On April 30, news from ZachXBT disclosed that at least six exchange platforms have begun to launder a previously stolen amount of 3520 BTC (approximately 331 million USD), converting it into XMR, which led to a temporary spike in XMR prices. It has now been confirmed that this incident was a social engineering scam targeting an American senior, with the source of funds at the involved address being 'quite suspicious'.