More than 100 unique exploits of a WinRAR bug have been identified since security researchers discovered a 19-year-old vulnerability in the file compression system. Attackers are mostly targeting U.S. users, hoping to reach them before they install a patch that was released late last month. The best recourse for most users is to simply avoid suspicious downloads and apply the patched version. The bug is a popular tool with an estimated 500 million users, which means the scope for threat actors to pursue exploits is particularly large.”]