Renowned chain detective ZachXBT posted on social media, pointing out that a WBTC (Wrapped Bitcoin) holder is reportedly involved in illegal activities. Through his analysis, the detective found that this holder possesses 1253 WBTC (approximately $73 million) and 185 WBTC (approximately $10.8 million), corresponding to addresses 0xed805ac246f441ea0d057b81d910ef1e39eb5995 and 0x9a5c7630d327885ae849217702824e5835d3c5e0. According to his investigation, the holder might be linked to ransomware attacks and 'pig butchery' (a fraudulent online investment platform), which has raised concerns about the background of WBTC holders.