SlowMist Chief Information Security Officer 23pds tweeted that the cryptocurrency theft Trojan MacOS Stealer has been open-sourced. Previously, its attack source code was sold for 1 BTC, but now open-sourcing means that more malicious attackers can easily obtain this tool. This may not only give attackers an attack library, but also lead to more covert and complex attack methods, which brings greater challenges to the security of cryptocurrency assets.